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sciq
sciq_01_06031
Where is the food supply and embryo stored in a seed?
[ "hull", "epicotyl", "plumule", "tegmen" ]
A
reproductive structure produced by a seed plant that contains an embryo and food supply enclosed within a hull.
math_qa
mathqa_03_04750
a boat can travel with a speed of 10 km / hr in still water . if the speed of the stream is 8 km / hr , find the time taken by the boat to go 54 km downstream .
[ "4.25 hr", "5.25 hr", "3 hr", "2.25 hr" ]
C
"speed of boat in still water = 10 km / hr speed of the stream = 8 km / hr speed downstream = ( 10 + 8 ) = 18 km / hr time taken to travel 68 km downstream = 54 ⠁ „ 18 = 17 ⠁ „ 4 = 3 hours answer is c"
openbookqa
obqa_02_04860
A plane travels through what?
[ "gas layers", "plains", "oceans", "time" ]
A
a plane travels through the atmosphere
medmcqa
medmcqa_05_00596
Best treatment protocol of a Enterogenic cyst
[ "Enucleation", "Resection with intestine part", "Aspiration with marsupialization", "Observe" ]
B
Ans. (b) Resection with intestine partRef: Bailey & Love 2&h ed. / 903* Enterogenous cyst arises from either a diverticulum of the mesentric border of the intestine that has become sequestrated from the intestinal canal during embryonic life or from a duplication of the intestine.* An enterogenous cyst has a thicker wa...
medmcqa
medmcqa_05_00451
6 year old drowsy child came in emergency with history of vomiting, loose motion for 3 days. On examination he had sunken eye, hypothermia, skin on pinching taken time to revert diagnosis -
[ "No dehydration", "Mild dehydration", "Some dehydration", "Severe dehydration" ]
D
Ans. is 'd' Le., Severe dehydrationo A child with severe dehydration will have at least two of the following four signs : sensorium is abnormally sleepy or lethargicr sunken eyes, drinking poorly or not at all, and a very slow skin pinch, o A child with some signs of dehydration will have two of the following : restles...
ARC-Easy
arc_04_01870
Which is an example of a single-celled organism?
[ "amoeba", "insect", "fish", "worm" ]
A
null
medmcqa
medmcqa_05_01900
Which of the following "oncogenic viruses" is so far not shown to be (oncogenic) in man -
[ "Hepatitis B virus", "Epstein - Barr virus", "Herpes simplex Type 2", "Adenovirus" ]
D
Ans. is 'd' i.e., Adenovirus . Adenovirus type 12 and 18 produce sarcoma when inoculated into baby hamsters. . However there is no evidence at all relating adenoviruses to natural malignancy in human or animals. . All other viruses given in option are oncogenic in man.
openbookqa
obqa_02_02233
Cars driving over a stone road throughout a year, including hot days and cool nights, may cause the road to
[ "evaporate", "burn", "flood", "break up" ]
D
mechanical weathering is when rocks are broken down by mechanical means
sciq
sciq_01_10460
In science, what process produces evidence that helps answer questions and solve problems?
[ "suspension", "manipulation", "information", "investigation" ]
D
Investigation is at the heart of science. It is how scientists do research. Scientific investigations produce evidence that helps answer questions and solve problems. If the evidence cannot provide answers or solutions, it may still be useful. It may lead to new questions or problems for investigation. As more knowledg...
sciq
sciq_01_03704
The separation of compounds on the basis of their solubilities in a given solvent is known as what?
[ "simplest crystallization", "fractional crystallization", "nuclei crystallization", "separate crystallization" ]
B
Solubility may increase or decrease with temperature; the magnitude of this temperature dependence varies widely among compounds. Notice in particular the curves for NH4NO3 and CaCl2. The dissolution of ammonium nitrate in water is endothermic (ΔHsoln = +25.7 kJ/mol), whereas the dissolution of calcium chloride is exot...
openbookqa
obqa_02_01274
If someone hears a crunching sound while walking under a tree, which of these likely happened?
[ "dead leaves fell down", "a mouse ran away", "a duck started quacking", "a dog was barking" ]
A
if a leaf falls off of a tree then that leaf is dead
math_qa
mathqa_03_02404
a train 225 m long passes a man , running at 10 km / hr in the same direction in which the train is going , in 10 seconds . the speed of the train is :
[ "81", "90", "91", "85" ]
C
"speed of the train relative to man = 225 / 10 m / sec = 45 / 2 m / sec . = 45 / 2 x 18 / 5 km / hr = 81 km / hr . let the speed of the train be x km / hr . then , relative speed = ( x - 5 ) km / hr . x - 10 = 81 = 91 km / hr . answer : c"
math_qa
mathqa_03_01414
if 20 typists can type 48 letters in 20 minutes , then how many letters will 30 typists working at the same rate complete in 1 hour ?
[ "63", "72", "144", "216" ]
D
"20 typists can type 48 letters , so 30 typists can type = 48 * 30 / 20 48 * 30 / 20 letters can be typed in 20 mins . in 60 mins typist can type = 48 * 30 * 60 / 20 * 20 = 216 d is the answer"
math_qa
mathqa_03_00716
what is the units digit of ( 493 ) ( 913 ) ( 381 ) ( 756 ) ( 29 )
[ "0", "1", "4", "3" ]
D
"just multiply the digits in the units place for each term and you will get the answer . it should be 0 . you got a 5 as a unit digit and an even number term . so the multiplication of this will definitely yield a 0 . answer has to be 0 . i also tried it using the calculator and the answer is 3 . imo d ."
openbookqa
obqa_02_04281
Which habit is healthiest for humans?
[ "adequate sleep", "only eating candy", "extreme alcohol consumption", "parachute-free sky-diving" ]
A
rest has a positive impact on a health
medmcqa
medmcqa_05_03256
Reiter's syndrome is due to -
[ "Chlamydia", "Nisseria", "Myoplasma", "Herpes virus" ]
A
Ans. is 'a' i.e., Chlamydia . Reiter syndrome is caused by --> Chlamydia trachomatis ureaplasma urelyticum, Salmonella Spp., Shigella spp., Yersinia spp., Campylobactor Spp.
sciq
sciq_01_02244
What chemical element is required for a combustion reaction ?
[ "oxygen", "helium", "nitrogen", "carbon" ]
A
A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O 2 as one reactant. The combustion of hydrogen gas produces water vapor.
openbookqa
obqa_02_04436
A bad spot in town, as far as nature and the health of Earth is concerned, will be
[ "heaped refuse", "piled compost", "pollinated flowers", "watered gardens" ]
A
landfills have a negative impact on the environment
openbookqa
obqa_02_02114
Great lakes may have come to be thanks to
[ "many visitors", "ice pillars", "large mice", "snow clouds" ]
B
some deep lakes are formed by glaciers
sciq
sciq_01_05882
Angiosperm success is a result of two novel structures that ensure reproductive success: flowers and this?
[ "glass", "ants", "fruit", "food" ]
C
Angiosperm success is a result of two novel structures that ensure reproductive success: flowers and fruit. Flowers allowed plants to form cooperative evolutionary relationships with animals, in particular insects, to disperse their pollen to female gametophytes in a highly targeted way. Fruit protect the developing em...
sciq
sciq_01_07374
Making a specific statement based on a general principle is the definition of what type of reasoning?
[ "deductive", "inductive", "inference", "transitive" ]
A
Deductive reasoning means making a specific statement based on a general principle.
medmcqa
medmcqa_05_01368
A doctor injected syringe which was used before on a patient, who turned out to be HIV positive later. Under which of the following IPCs will the doctor be booked for medical negligence?
[ "166 B", "202", "203", "269" ]
D
S. 269 IPC: Punishment for Negligent act likely to spread infection of disease dangerous to life. S. 270:- Malignant act likely to spread infection of disease dangerous to life.
sciq
sciq_01_10445
What is the second stage of photosynthesis?
[ "production of protein", "glucose destruction", "production of glucose", "pigment release" ]
C
The second stage of photosynthesis is the production of glucose from carbon dioxide. This process occurs in a continuous cycle, named after its discover, Melvin Calvin. The Calvin cycle uses CO 2 and the energy temporarily stored in ATP and NADPH to make the sugar glucose.
medmcqa
medmcqa_05_04735
Best view for visualizing sella turcica on X-Ray:
[ "A P View", "Town's view", "Lateral view", "Open mouth view" ]
C
C i.e. Lateral view
sciq
sciq_01_06111
What are gymnosperms lacking compared to most angiosperms?
[ "use elements", "vessel elements", "muscle elements", "vascular elements" ]
B
medmcqa
medmcqa_05_03010
Oily substance secreting gland is: September 2009
[ "Sweat gland", "Meibomian gland", "Salivary gland", "Lacrimal gland" ]
B
Ans. B: Meibomian glandThe meibomian glands (or tarsal glands) are a special kind of sebaceous glands at the rim of the eyelids inside the tarsal plate, responsible for the supply of meibum, an oily substance that prevents evaporation of the eye's tear film, prevents tear spillage onto the cheek, makes the closed lids ...
sciq
sciq_01_05219
What kind of reaction, in general, keeps stars shining?
[ "magnetism", "fusion", "fission", "evolution" ]
B
The energy from fusion reactions keeps the star shining.
sciq
sciq_01_05254
What term describes the long tube that connects the mouth to the anus?
[ "gastrointestinal tract", "metabolism tract", "esophagus tract", "lungs tract" ]
A
The organs in Figure below make up the gastrointestinal (GI) tract. This is essentially a long tube that connects the mouth to the anus. Food enters the mouth and then passes through the rest of the GI tract. Food waste leaves the body through the anus. In adults, the GI tract is more than 9 meters (30 feet) long!.
openbookqa
obqa_02_02315
Alice flipped a switch and the ceiling fan started running because
[ "the electricity was cut off", "a circuit was opened", "a fuse was blown", "a circuit was closed" ]
D
completing a circuit causes electric current to flow through that circuit
openbookqa
obqa_02_04334
Reproduction occurs when?
[ "infancy", "childhood", "youth", "physically prepared" ]
D
reproduction occurs during adulthood
openbookqa
obqa_02_03174
Who is most likely to get a job at a lumber yard?
[ "deep sea divers", "liberal art majors", "sawyers", "astronauts" ]
C
timber companies cut down trees
medmcqa
medmcqa_05_01278
Culture medium for campylobactor Jej uni -
[ "BYCE medium", "Skirrow's medium", "Thayer-Martin medium", "TCBS medium" ]
B
Ans. is 'b' i.e., Skirrow's medium Media for Campylobactoro Preston mediao Campylobactor agar baseo Skirrow's mediao Butzler's mediao Aka Balton mediao Karmah agaro Columbia blood agaro Campylobactor enrichment broth,o CCDA (Charcol-cefoperazone-deoxycholate agar)o CVA (Cefoperazone, Vancomycin and amphotericin B)
sciq
sciq_01_02956
What is the largest body in the solar system?
[ "asteroids", "earth", "planet", "sun" ]
D
Our Sun is a star. This star provides light and heat and supports almost all life on Earth. The Sun is the center of the solar system. It is by far the largest part of the solar system. Added together, all of the planets make up just 0.2 percent of the solar system's mass. The Sun makes up the remaining 99.8 percent of...
sciq
sciq_01_00759
What is paleobotany?
[ "study of new plants", "study of diseased plants", "study of fresh plants", "study of extinct plants" ]
D
Paleobotanist How organisms acquired traits that allow them to colonize new environments—and how the contemporary ecosystem is shaped—are fundamental questions of evolution. Paleobotany (the study of extinct plants) addresses these questions through the analysis of fossilized specimens retrieved from field studies, rec...
sciq
sciq_01_11212
In single-celled organisms, plasma membrane extensions, such as whip-like flagella or brush-like cilia, aid in what?
[ "pressure", "movement", "sound", "sensation" ]
B
The plasma membrane may have extensions, such as whip-like flagella or brush-like cilia. In single-celled organisms, like those shown in Figure below , the membrane extensions may help the organisms move. In multicellular organisms, the extensions have other functions. For example, the cilia on human lung cells sweep f...
math_qa
mathqa_03_01938
how many integerskgreater than 100 and less than 900 are there such that if the hundreds and the units digits ofkare reversed , the resulting integer is k + 99 ?
[ "50", "60", "70", "80" ]
C
"numbers will be like 102 = > 201 = 102 + 99 203 = > 302 = 103 + 99 so the hundereth digit and units digit are consecutive where unit digit is bigger than hundred digit . there will be seven pairs of such numbers for every pair there will 10 numbers like for 12 = > 102 , 112,132 , 142,152 , 162,172 , 182,192 . total = ...
sciq
sciq_01_06775
When is the sun directly over the equator?
[ "equinox", "Winter", "Fall", "Midsummer" ]
A
Solstice refers to the position of the Sun when it is closest to one of the poles. At equinox, the Sun is directly over the Equator.
medmcqa
medmcqa_05_01160
As per POCSO act, child was brought for age estimation. Xray wrist taken. The maximum age of the wrist joint is:
[ "4 years", "7 years", "10 years", "13 years" ]
C
The POCSO Act defines a child as any person below the age of 18 years and provides protection to all children (both males and females) under the age of 18 years from sexual abuse. Ossification Centres of Carpal Bones: Capitate: 1-3 months Hamate: 2-4 months Triquetrum: 2-3 years Lunate: 2-4 years Scaphoid: 4-6 years Tr...
sciq
sciq_01_09951
What are the rod-like structures made of short microtubules that play an important part in cellular division?
[ "centrioles", "mitochondria", "cilia", "fibrils" ]
A
Centrioles are rod-like structures made of short microtubules. Nine groups of three microtubules make up each centriole. Two perpendicular centrioles make up the centrosome . Centrioles are very important in cellular division, where they arrange the mitotic spindles that pull the chromosome apart during mitosis.
medmcqa
medmcqa_05_01743
Mechanism of action of dofibrates is?
[ "Inhibit HMGCoAreductase", "Inhibit HMG CoA synthase", "Inhibit absorption of cholesterol", "Inhibit release of TG and LDL" ]
D
Ans. (d) Inhibit release of TG and LDLRef KDT 6/e, p 614, Harrisons 18/e, chapter 356
ARC-Easy
arc_04_01550
When can producers make the most food?
[ "summer, because there is more sunlight", "summer, because there is more heat", "spring, because there is more rain", "spring, because there are more leaves" ]
A
null
sciq
sciq_01_02574
What type of tissue produces and secretes several hormones involved in lipid metabolism and storage?
[ "adipose tissue", "hormonal tissue", "metabolism tissue", "somatic tissue" ]
A
Adipose Tissue Adipose tissue produces and secretes several hormones involved in lipid metabolism and storage. One important example is leptin, a protein manufactured by adipose cells that circulates in amounts directly proportional to levels of body fat. Leptin is released in response to food consumption and acts by b...
ARC-Easy
arc_04_00823
Which is an example of a chemical reaction?
[ "Vinegar added to baking soda forms a gas.", "Water evaporates into air.", "Sugar dissolves in water.", "Corn kernels are crushed to form flour." ]
A
null
sciq
sciq_01_09973
What are secreted into the gi tract by organs of the gi tract or from a nearby gland named the pancreas?
[ "digestive enzymes", "stomach acid", "insulin and pepsin", "bile" ]
A
Most digestive enzymes are secreted into the GI tract by organs of the GI tract or from a nearby gland named the pancreas. Figure below shows where the pancreas is located. The figure also shows the locations of the liver and gall bladder. These organs produce or store other digestive secretions.
sciq
sciq_01_08865
What is the term for magma that erupts onto earth's surface?
[ "debris", "obsidian", "lava", "steam" ]
C
Some places inside Earth are so hot that rock melts. Melted rock inside the Earth is called magma. Magma can be hotter than 1,000 o C. When magma erupts onto Earth’s surface, it is known as lava ( Figure below ). Minerals form when magma and lava cool. Some minerals crystallize at hotter temperatures. These minerals fo...
openbookqa
obqa_02_02731
migration is when animals travel from the northern state such as north dakota to Texas during what segment of time?
[ "lake fronts", "birds", "spring", "winter" ]
D
An example of migration is birds flying south in the winter
sciq
sciq_01_11253
What protects reptiles from drying out?
[ "hairs", "skin", "sweat", "scales" ]
D
Reptiles also have several adaptations for living on land. They have a skin covered in scales to protect them from drying out. All reptiles have lungs to breathe air. Reptiles are also amniotes , which means their embryos are surrounded by a thin membrane. This membrane protects the embryo from the harsh conditions of ...
sciq
sciq_01_11175
Red giants are stars that fuse what element into larger atoms?
[ "oxygen", "carbon", "helium", "hydrogen" ]
C
When stars fuse helium into larger atoms, they become red giants.
sciq
sciq_01_03121
Geologists group rocks based on how they what?
[ "dissove", "move", "form", "look" ]
C
Geologists group rocks based on how they form. There are three major rock types. Each will be described in more detail in the coming concepts.
sciq
sciq_01_06000
What do you call the first cell of a new organism?
[ "zygote", "starter cell", "embryo", "egg" ]
A
Cells divide repeatedly to produce an embryo. Previously the one-celled zygote (the first cell of a new organism) divided to make two cells (a). Each of the two cells divides to yield four cells (b), then the four cells divide to make eight cells (c), and so on. Through cell division, an entire embryo forms from one in...
sciq
sciq_01_06155
Influenza virus is packaged in a viral envelope, which fuses with the what?
[ "cell wall", "plasma membrane", "bacteria", "nucleus" ]
B
Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?.
medmcqa
medmcqa_05_04108
The heights of contour of the distal surfaces of permanent mandibular central incisors are located in which coronal third?
[ "Middle.", "Cervical.", "Occlusal.", "Incisal." ]
D
Height of contour on distal surface of permanent mandibular central incisors is at the incisal third).
sciq
sciq_01_01844
What does subduction of a plate lead to?
[ "bending and volcanism", "swell and volcanism", "pressure and volcanism", "melting and volcanism" ]
D
Subduction of a plate leads to melting and volcanism.
math_qa
mathqa_03_01216
ashok and pyarelal invested money together in a business and share a capital of ashok is 1 / 9 of that of pyarelal . if the incur a loss of rs 2000 then loss of pyarelal ?
[ "1600", "1700", "1800", "1900" ]
C
"let the capital of pyarelal be x , then capital of ashok = x / 9 so ratio of investment of pyarelal and ashok = x : x / 9 = 9 x : x hence out of the total loss of 2000 , loss of pyarelal = 2000 * 9 x / 10 x = 1800 answer : c"
sciq
sciq_01_07024
What theory explains most of the features of earth’s surface?
[ "Big Bang theory", "string theory", "plate tectonics", "flat earth theory" ]
C
The theory of plate tectonics explains most of the features of Earth’s surface. Plate tectonics helps us to understand where and why mountains form. Using the theory, we know where new ocean floor will be created and where it will be destroyed. We know why earthquakes and volcanic eruptions happen where they do. We eve...
sciq
sciq_01_09472
What kind of reproduction involves just one parent and produces offspring genetically identical to each other and to the parent?
[ "organic reproduction", "microscopic reproduction", "asexual reproduction", "sexual reproduction" ]
C
Asexual reproduction is simpler than sexual reproduction. It involves just one parent. The offspring are genetically identical to each other and to the parent. All prokaryotes and some eukaryotes reproduce this way. There are several different methods of asexual reproduction. They include binary fission, fragmentation,...
sciq
sciq_01_02998
Blood vessels blood pumped by the heart flows through a series of vessels known as arteries, arterioles, capillaries, venules, and veins before returning to this?
[ "heart", "lungs", "feet", "brain" ]
A
CHAPTER REVIEW 20.1 Structure and Function of Blood Vessels Blood pumped by the heart flows through a series of vessels known as arteries, arterioles, capillaries, venules, and veins before returning to the heart. Arteries transport blood away from the heart and branch into smaller vessels, forming arterioles. Arteriol...
sciq
sciq_01_06929
Carefully controlling the speed of a fission reaction produces what kind of energy?
[ "thermal", "chemical", "nuclear", "atomic" ]
C
Nuclear energy is produced by carefully controlling the speed of a fission reaction.
ARC-Easy
arc_04_01041
In which pair of elements are both metalloids?
[ "Sn and Sb", "Sb and Te", "Te and I", "I and Xe" ]
B
null
sciq
sciq_01_09242
In drosophila, gradients of morphogens encoded by maternal effect genes determine what?
[ "cells axes", "body axes", "cell mass", "body mass" ]
B
medmcqa
medmcqa_05_01465
Commonest type of ca breast is -
[ "Papillary ca", "Pagets disease", "Fibrasorcoma", "Infiltrative ductal ca" ]
D
Ans is 'd' ie Infiltrative Ductal ca Almost all breast malignancies are adenocarcinomas, all other types (i.e. squamous cell Ca, phylloides tumors, sarcomas, and lymphomas are rare They are divided into two types ductal and lobular types each of which are fuher two types carcinoma in situ & invasive type. Ductal carcin...
ARC-Challenge
arc_04_02872
At what temperature is water most likely to be in vapor form?
[ "-10°C", "20°C", "90°C", "120°C" ]
D
null
math_qa
mathqa_03_00625
lilly has 10 fish and rosy has 9 fish . in total , how many fish do they have in all ?
[ "16", "17", "18", "19" ]
D
"10 + 9 = 19 the answer is d ."
sciq
sciq_01_03565
What is the change in behavior based on experience?
[ "applying", "analyzing", "learning", "observing" ]
C
openbookqa
obqa_02_02768
If a bird is pecking at a bush for food, the bush can also eat if
[ "munches on some berries", "it fulfills its role", "orders something it likes", "kills a small deer" ]
B
producer is a kind of role in the food chain process
openbookqa
obqa_02_03100
Sediment is a result of the process of
[ "running", "jumping", "magic", "rain" ]
D
when a river floods , that river deposits sediment in flood plains
sciq
sciq_01_00267
Comparing anatomy, and characterizing the similarities and differences, provides evidence of what process?
[ "regression", "evolution", "devolution", "emergence" ]
B
Take a close look at this gorilla hand. The similarities to a human hand are remarkable. Comparing anatomy, and characterizing the similarities and differences, provides evidence of evolution.
sciq
sciq_01_05160
What tool, used to locate underwater objects, utilizes ultrasound in a way that is similar to echolocation?
[ "sonar", "radar", "scanning", "GPS" ]
A
Sonar uses ultrasound in a way that is similar to echolocation. Sonar stands for so und na vigation and r anging. It is used to locate underwater objects such as sunken ships or to determine how deep the water is. A sonar device is usually located on a boat at the surface of the water. The device is both a sender and a...
sciq
sciq_01_02352
The expulsion stage begins when the fetal head enters what?
[ "birth canal", "head is outside vagina", "uterus", "you can see the umbilical cord" ]
A
Expulsion Stage The expulsion stage begins when the fetal head enters the birth canal and ends with birth of the newborn. It typically takes up to 2 hours, but it can last longer or be completed in minutes, depending in part on the orientation of the fetus. The vertex presentation known as the occiput anterior vertex i...
medmcqa
medmcqa_05_02405
Bread crumb colony appearance is of:
[ "Bordetella peussis", "Vibrio cholerae", "Actinomyces israeli", "M. Leprae" ]
C
Actinomyces israeli
medmcqa
medmcqa_05_00428
Which is a feature of Normal pressure hydrocephalus
[ "Gait Disturbance", "Aphasia", "Global confusion", "Opthalmoplegia" ]
A
Harrison's principles of internal medicine 17 th edition * For NPH the clinical triad includes an abnormal gait( ataxic/ apractic) , dementia and urinary incontinence .
medmcqa
medmcqa_05_04551
A different sequence of amino acids having a similar structure of proteins is an example of
[ "Divergence", "Convergence", "Opportunistic", "Incidental" ]
B
Divergence and convergence are two evolutionary processes by which organisms become adapted to their environments. Convergence has been defined as the acquisition of morphologically similar traits between distinctly unrelated organisms. Convergence occurs at every level of biological organization. Functional Convergen...
openbookqa
obqa_02_03928
If a day is dawning and grass is glistening, then
[ "the night was chilly", "the night was hot", "the snow is yellow", "the yard is burned" ]
A
dew is formed when water vapor condenses over night
medmcqa
medmcqa_05_01509
Safe strategy is for
[ "Trachoma", "Diabetic Retinopathy", "Onchocerciasis", "Glaucoma" ]
A
Ans is 'a' i.e. Trachoma 'SAFE' strategy is a WHO recommended strategy to fight trachoma.'SAFE' strategy for Trachoma It includesSurgery - first component of the strategy for correction of trichiasis and entropionAntibiotics - Zithromax (azithromycin) single dose oral medication is used (Zithromax is donated by Pfizer ...
medmcqa
medmcqa_05_00126
Osteogenesis imperfecta (OI) may present similarly to child maltreatment. However, there are features of OI that may help differentiate the 2, including blue sclera and osteopenia. Which of the following is another distinguishing feature
[ "Multiple fractures in the setting of minimal trauma", "Dental involvement", "Patent foramen ovale", "Polydactyly" ]
B
Multiple medical conditions can present similarly to nonaccidental trauma, including OI. This autosomal dominant genetic disease often presents with multiple fractures in the setting of minimal trauma. However, distinguishing features include osteopenia, blue sclera, family history, and dental involvement. Polydactyly ...
sciq
sciq_01_01023
Hydrogen peroxide will decompose over time to produce _______ gas.
[ "methane", "water and carbon dioxide", "hydrogen and helium", "water and oxygen" ]
D
Again, substances in all states of matter commonly participate in decomposition reactions. For example, hydrogen peroxide will decompose over time to produce water and oxygen gas according to the following equation:.
math_qa
mathqa_03_03952
if the sides of a triangle are 30 cm , 26 cm and 10 cm , what is its area ?
[ "120", "110", "130", "140" ]
C
"the triangle with sides 30 cm , 26 cm and 10 cm is right angled , where the hypotenuse is 30 cm . area of the triangle = 1 / 2 * 26 * 10 = 130 cm 2 answer : option c"
medmcqa
medmcqa_05_04619
Which one of the following is the most characteristic arrythmia with digitalis toxicity
[ "Atrial fibrillation", "Extrasystole", "NPAT with block", "Auricular flutter" ]
C
The classic features of digoxin toxicity are nausea, vomiting, abdominal pain, headache, dizziness, confusion, delirium, vision disturbance (blurred or yellow vision). It is also associated with cardiac disturbances including irregular heabeat, ventricular tachycardia, ventricular fibrillation, sinoatrial block and AV ...
math_qa
mathqa_03_04414
in an election between two candidates , the first candidate got 60 % of the votes and the second candidate got 240 votes . what was the total number of votes ?
[ "400", "600", "800", "1000" ]
B
let v be the total number of votes . 0.4 v = 240 v = 600 the answer is b .
sciq
sciq_01_02243
What type of organism is a bacteria?
[ "paramecium", "fungi", "single-celled prokaryotic", "multicellular organism" ]
C
The single-celled prokaryotic organism otherwise known as bacteria. And all it takes is one to quickly grow, under just the right conditions, into millions and billions. Luckily, we know how to control bacteria when necessary. But bacteria do serve many important purposes. In fact, we could not survive without them.
medmcqa
medmcqa_05_04912
Baholin gland opening is at: March 2013
[ "Inner side of labia minor external to hymen", "Outer side of labia minor external to hymen", "Inner side of labia minor internal to hymen", "Outer side of labia minor internal to hymen" ]
A
Ans. A i.e. Inner side of labia minor external to hymen
sciq
sciq_01_08394
What do we call use of electric current to encode information?
[ "ferious", "metals", "electronics", "products" ]
C
The use of electric current to encode information is called electronics. Electronic signals may be digital or analog signals. Both types of signals encode information by changing the voltage of an electric current, but they do so in different ways.
openbookqa
obqa_02_00902
A car drives right past the gas station because it's motor is
[ "gas", "diesel", "coal", "electric" ]
D
an electric car contains an electric motor
sciq
sciq_01_01704
Deterioration of limestone occurs more rapidly as the concentration of what increases?
[ "water pollutants", "ocean pollutants", "air pollutants", "ground pollutants" ]
C
Figure 12.7 Statues made from carbonate compounds such as limestone and marble typically weather slowly over time due to the actions of water, and thermal expansion and contraction. However, pollutants like sulfur dioxide can accelerate weathering. As the concentration of air pollutants increases, deterioration of lime...
math_qa
mathqa_03_03184
how many liters of a 40 % iodine solution need to be mixed with 35 liters of a 20 % iodine solution to create a 30 % iodine solution ?
[ "30.5", "49", "100", "105" ]
A
"solution 1 : assume the iodine solution to be mixed = x lts . iodine = 0.4 x lts , water = 0.6 x lts . solution 2 : 35 liters of a 20 % iodine solution iodine = 7 lts , water = 28 lts . total iodine = 0.4 x + 7 total water = 0.6 x + 28 the resultant is a 35 % idoine solution . hence ( 0.4 x + 7 ) / ( x + 35 ) = 30 / 1...
sciq
sciq_01_01611
What helps amplify the effects of extracellular signals?
[ "mutation cascades", "enzymatic cascades", "spontaneous cascades", "electrical cascades" ]
B
The effects of extracellular signals can also be amplified by enzymatic cascades. At the initiation of the signal, a single ligand binds to a single receptor. However, activation of a receptor-linked enzyme can activate many copies of a component of the signaling cascade, which amplifies the signal.
medmcqa
medmcqa_05_00601
Wimberger sign is seen in
[ "Lead poisoning", "Scurvy", "Osteomalacia", "Bone infarct" ]
B
Radiological features of scurvy: Palkan spur : metaphyseal spurs projecting at right angles to the shaft. White line of Frankel : calcified cailage in the metaphysis Trumefeld zone : zone of rarefraction below the white line of Frankel Wimburger sign : ring surrounding the ephiphyseal centres of ossification Pencil thi...
sciq
sciq_01_01075
Scientists did not actually see viruses until what was invented?
[ "electron microscope", "electronic scale", "magnifying glass", "telescope" ]
A
Scientists did not actually see viruses for the first time until the 1930s. That’s when the electron microscope was invented. The virus shown in Figure below was the first one to be seen.
ARC-Challenge
arc_04_03067
Below is an advertisement found in a local newspaper. As shiny as diamonds at a fraction of the price! Buy "Simu-Gems" at Cost-Rite Jewelers. This advertisement suggests that Cost-Rite Jewelers' supplier
[ "found a less expensive way to mine and process diamonds.", "manufactured artificial stones that resemble diamonds.", "reduced the price of diamonds in order to sell more.", "started providing small diamonds instead of large ones." ]
B
null
math_qa
mathqa_03_01314
of the people who responded to a market survey , 60 preferred brand x and the rest preferred brand y . if the respondents indicated a preference for brand x over brand y by ratio of 3 to 1 , how many people responded to the survey ?
[ "80", "150", "240", "360" ]
A
"ratio = 3 : 1 = > 3 x respondents preferred brand x and x preferred brand y since , no . of respondents who preferred brand x = 60 = > 3 x = 60 = > x = 20 hence total no . of respondents = 60 + 20 = 80 hence a is the answer ."
medmcqa
medmcqa_05_02751
Base population for a population based cancer registry is:-
[ "1-2 million", "1-3 million", "1-5 million", "2-7 million" ]
D
There are mainly two types of cancer registry functional in India. HOSPITAL BASED REGISTRIES: The hospital-based registry indudes all patients treated by a paicular institution, whether inpatients or out-patients. Registries should collect uniform minimum set of data recommended in the '"WHO Handbook for Standardized C...
openbookqa
obqa_02_02740
If plants are chilled in evening air,
[ "put them in a fire pit", "put them in a glass pile", "put them in an igloo", "put them in a glass building" ]
D
a greenhouse is used to protect plants by keeping them warm
sciq
sciq_01_01773
Cellulose is the main structural component of what part of the plant cell, and makes up over thirty percent of plant matter?
[ "roots", "flowers", "proteins wall", "cell wall" ]
D
Figure 31.3 Cellulose, the main structural component of the plant cell wall, makes up over thirty percent of plant matter. It is the most abundant organic compound on earth. Plants are able to make their own cellulose, but need carbon from the soil to do so.
math_qa
mathqa_03_03766
an owner of a pizza stand sold small slices of pizza for rs . 150 each and large slices for rs . 250 each . one night he sold 5000 slices , for a total of rs . 10.50 lakh . how many small slices were sold ?
[ "3000", "2000", "4000", "2500" ]
B
explanatory answer this question is a word problem in linear equations . the problem is solved by framing two linear equations from the information given in the question and solving them . let ' s ' be the number of small slices and ' b ' the number of large slices sold on that night . therefore , s + b = 5000 . . . eq...
sciq
sciq_01_02291
What kind of bond consists of one sigma bond and one pi bond?
[ "double bond", "ionic bond", "beta bond", "covalent bond" ]
A
Recall that a double bond consists of one sigma bond and one pi bond. In order for a double bond to be formed, each participating carbon atom must have at least one unhybridized p orbital. In a carbon-carbon double bond where both carbons are bonded to two additional atoms, each carbon is sp 2 hybridized. The double bo...
math_qa
mathqa_03_03260
a lady builds 9 cm length , 12 cm width , and 3 cm height box using 3 cubic cm cubes . what is the minimum number of cubes required to build the box ?
[ "107", "108", "109", "110" ]
B
"number of cubes required = volume of box / volume of cube = 9 * 12 * 3 / 3 = 108 cubes answer : b"
sciq
sciq_01_01418
Because of its composition, oil does not do what in water?
[ "form", "dissolve", "explode", "separate" ]
B
medmcqa
medmcqa_05_04474
Warthin Finkeldy cells are found in:
[ "Measles", "Mumps", "Molluscum contagiosum", "Herpes simplex infection" ]
A
Ans: A (Measles) Ref: Ananthanarayan, Panther CJ. Textbook of Microbiology 8th Edition & John Wiley & Sons, 2009Explanation:Guarneri bodies - VacciniaBollinger bodies - FowlpoxMolluscum bodies - Molluscum contagiosumTzanck cells - Multinucleated giant cells found in Herpes simplex infectionWarthin Finkeldy cells - Type...
sciq
sciq_01_11142
In birds, lightweight air-filled bones and a large four-chambered heart are examples of adaptations for what purpose?
[ "speed", "long lifespan", "mating", "flight" ]
D
Birds are endothermic tetrapod vertebrates. They are bipedal and have wings and feathers. Their organ systems are adapted for flight. For example, they have light-weight air-filled bones and a large four-chambered heart. Birds also have relatively large brains and a high level of intelligence.
medmcqa
medmcqa_05_02014
Sarcoidosis most common presentation -
[ "Erythema nodosum", "Respiratory manifestation", "Constitutional symptoms", "Abnormal X-ray chest" ]
D
Sarcoidosis is considered with other DPLDs, as over 90% of cases affect the lungs, but the condition can involve almost any organ . Lofgren's syndrome - an acute illness characterised by erythema nodosum, peripheral ahropathy, uveitis, bilateral hilar lymphadenopathy (BHL), lethargy and occasionally fever - is often se...