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Previous Year Questions

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QUESTION ID:1

Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. For more than a century, burning fossil fuels has generated most of the energy required to propel our cars, power our businesses, and keep the lights on in our homes. Even today, oil, coal, and gas provide for about 80 percent of our energy needs. However, they also have harmful effects, which include:

A) Land degradation

B) Water pollution

C) Air pollution

D) Overpopulation of animals

E) Global warming

F) Ocean acidification 

QUESTION ID:2

The cultural tradition of using this substance seems to have developed through a convergent evolution process, as traces of this habit have been separately in many of the early civilizations. This substance is a soft, cohesive substance designed to be chewed without being swallowed, and composed of chicle, sweeteners, softeners, flavors, colors, and a hard or powdered polyol coating. What is this? 

QUESTION ID:3

Which of the following substance produces brisk effervescence with baking soda solution? 

QUESTION ID:4

Aspirin was derived from the acetylsalicylic acid found in: 

QUESTION ID:5

Particulates of ........... size pose greatest risk to human health. 

QUESTION ID:6

An electric fan is switched on in a closed room. The air in the room is: 

QUESTION ID:7

Long distance short-wave radio broad-casting uses: 

QUESTION ID:8

A tall man of height 6 feet, wants to see his full image. Then required minimum length of the mirror will be: 

QUESTION ID:9

A plane glass slab is kept over various coloured letters; the letter which appears least raised is: 

QUESTION ID:10

Surfactants are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid. An example of this is: 

QUESTION ID:11

Inulin occurs in the root of: 

QUESTION ID:12

Which one of the following alcoholic drinks is produced without distillation? 

QUESTION ID:13

The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is:

QUESTION ID:14

Which of the following fractions of petroleum has the lowest boiling point? 

QUESTION ID:15

A well stoppered thermos flask contains some ice cubes. This is an example of: 

QUESTION ID:16

In the table below are shown temperature conversions from Celsius (C) to Fahrenheit (F). Which of the following are correctly matched?


QUESTION ID:17

Two ice cubes are pressed over each other until they unite to form one block. The force mainly responsible for holding them together is: 

QUESTION ID:18

Hypo is used in photography because it is: 

QUESTION ID:19

A piece of ice floats in a vessel with water above which a layer of a lighter oil is poured. How will the level of the interface change after the whole of ice melts? What will be the change in the total level of liquid in the vessel? 

QUESTION ID:20

Legal limit of blood alcohol concentration as per traffic rules in India is: 

QUESTION ID:21

Water at 24 degrees Celsius feels much colder than air at the same temperature and our body loses heat many times more quickly while in water than it would in air at the same temperature. The reason(s) for this is/are:

A) Water is the better conductor of the two

B) Water is much easier to touch and feel than air

C) Water is denser than air. 

QUESTION ID:22

If an iron ball and a wooden ball of same radii are released from a height ‘h’ in vacuum then time taken by both of them to reach ground will be: 

QUESTION ID:23

A bus is moving with a speed of 10 m/s on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from the scooterist, with what speed should the scooterist chase the bus? 

QUESTION ID:24

Wood pulp is used to make which of the following:

A) Paper bags

B) Calendars

C) Cardboard boxes

D) Tissue and toilet papers

E) Blankets

F) Building insulation

G) Diapers and sanitary pads 

QUESTION ID:25

A cut trunk shows 26 concentric rings of spring wood and autumn wood in alternate rows. The age of trunk would be: 

QUESTION ID:26

Statins used for lowering blood cholesterol level are extracted from: 

QUESTION ID:27

A pair of fair dice is thrown independently three times. The probability of getting a score of exactly 9 twice is: 

QUESTION ID:28

Big holes in Swiss cheese are produced by: 

QUESTION ID:29

With reference to the Indian climate, the Western Disturbances originate over: 

QUESTION ID:30

At an election, a voter may vote for any number of candidates, not greater than the number to be elected. There are 10 candidates and 4 are to be elected. If a voter votes for at least one candidate, then the number of ways in which he can vote is: 

QUESTION ID:31

10 men and 8 women together can complete a work in 5 days. Work done by one woman in a day is equal to half the work done by a man in one day. How many days will it take for 4 men and 6 women to complete that work? 

QUESTION ID:32

When you use your finger to scroll information displayed on a touch screen, the device responds because your finger: 

QUESTION ID:33

Milk kept at room temperature turns to curd due to: 

QUESTION ID:34

Farsighted, or hypermetropic, eye can be corrected using a: 

QUESTION ID:35

If the door of a working refrigerator is left open in a well-insulated room, the overall temperature of air in this room will: 

QUESTION ID:36

Televisions and computer monitor commonly have a LED screen. The abbreviation LED stands for: 

QUESTION ID:37

Vinegar is: 

QUESTION ID:38

Raw vegetables get quickly cooked in a pressure cooker because: 

QUESTION ID:39

While evaluating an investigational new drug, a ‘Phase I study’ is conducted on: 

QUESTION ID:40

The Indian Council of Medical Research updated its national ethical guidelines for biomedical and health research involving human participants most recently in: 

QUESTION ID:41

Among the data collected for a clinical study in diabetic patients, which of the following is NOT a scalar variable? 

QUESTION ID:42

The value of variance for the number of COVID cases due to non-adherence to COVID appropriate behaviour is 64. Calculate the value of standard deviation. 

QUESTION ID:43

ANOVA is a statistical technique, which is used to test which one of the following? 

QUESTION ID:44

A researcher has access to data pertaining to the health expenditure of individuals. If each value of this data series is multiplied by 10, then what will be the effect on the median? 

QUESTION ID:45

The weight of three persons who participated in a health study were 56, 50 and 47 Kilograms. Calculate the arithmetic weight. 

QUESTION ID:46

Which of the following denotes “Five equal groups into which a population can be divided according to the distribution of values of a particular variable”? 

QUESTION ID:47

“The percent of total variation in the dependent variable that is explained by the set of independent variables in the study”, is denoted by which one of the following? 

QUESTION ID:48

The pre-test with the questionnaire before conducting a survey is denoted by which of the following term? 

QUESTION ID:49

A research laboratory examined their data of 100 patients proven to have tuberculosis based on results from sputum culture. Only 40 of them had a positive result on sputum microscopy, while 80 had a positive result from a novel diagnostic test under evaluation. Based on this information, as compared to sputum microscopy, the new test has better: 

QUESTION ID:50

A researcher administers an achievement test to assess & indicate the possible effect of an independent variable in her study. The distribution of scores in this test is found to be negatively skewed. On this basis what can the researcher deduce regarding the difficulty level of the test? 

QUESTION ID:51

Which one of the following fungi is most likely to be found within reticulo-endothelial cells? 

QUESTION ID:52

The X factor and/or the V factor is required by which genus of bacteria? 

QUESTION ID:53

Autoinfection is seen in life cycle of which parasite? 

QUESTION ID:54

Sterilization on three successive days by steaming at 100ºC for 30 minutes is known as: 

QUESTION ID:55

Mesophiles are group of bacteria that grow within the temperature range of: 

QUESTION ID:56

The extent to which a person's behaviour, taking medication, following a diet, and/or executing lifestyle changes, corresponds with recommendations from a health care provider, is known as: 

QUESTION ID:57

A tablet that has no active ingredient and does not have any pharmacological action, but is still used to improve patient’s condition is known as: 

QUESTION ID:58

Your friends, who are otherwise healthy, are planning to travel to mountains, to heights above 8000ft above sea level. Which of the following medications would you recommend to carry with them? 

QUESTION ID:59

A high octanol water partition coefficient is likely to make the drug: 

QUESTION ID:60

Which of the following anti-diabetic drugs can cause vitamin B12 deficiency? 

QUESTION ID:61

The volume of air, inspired or expired during normal respiration, is called: 

QUESTION ID:62

Which of the following statement is false about red blood cells (RBCs)? 

QUESTION ID:63

A single molecule of haemoglobin can transport up to ___ molecules of oxygen. 

QUESTION ID:64

The hormone involved in rhythmic activities, such as day/night and seasonal changes is: 

QUESTION ID:65

Kinetoplast is made up of copies of: 

QUESTION ID:66

Single step large mutation leading to speciation is also called: 

QUESTION ID:67

If the total amount of adenine and thymine in a double-stranded DNA is 45%, the amount of guanine in this DNA will be: 

QUESTION ID:68

How many DNA duplexes are obtained from one DNA duplex after 10 cycles of PCR? 

QUESTION ID:69

A single nucleotide substitution (C has been replaced by A) has taken place in a gene, but the protein sequence is not altered. What is the type of such variant called as? 

QUESTION ID:70

Which of the following is wrongly paired? 

QUESTION ID:71

What does HGVS stands for? 

QUESTION ID:72

What type of amplification takes place in sequencing by synthesis technique? 

QUESTION ID:73

The core of the spliceosome complex is formed by: 

QUESTION ID:74

DNA and RNA polymerase differ in ALL of the following, EXCEPT: 

QUESTION ID:75

On a ribosome, the mRNA is read from………….and the polypeptide chain is synthesized from: 

QUESTION ID:76

What will be the probability of getting AABB genotype, if a plant with genotype AaBb is selffertilized? (A and B are not linked). 

QUESTION ID:77

Which of the following do not encompass reverse genetics? 

QUESTION ID:78

The smallest unit of genetic material which upon mutation produce a phenotypic effect is: 

QUESTION ID:79

Which of the following conditions is a peroxisomal disorder? 

QUESTION ID:80

Which of the following repair pathways can faithfully repair a double-stand DNA break? 

QUESTION ID:81

If the father in a family has a disease while the mother is normal, the disease is only inherited by the daughters and not the sons. Name this type of disease? 

QUESTION ID:82

Mendel did not observe linkage due to: 

QUESTION ID:83

Alpha 1 anti-trypsin deficiency is an autosomal recessive genetic disorder. What are the chances that any of the offspring do not express the disease phenotype if both parents are genotype (Aa)? 

QUESTION ID:84

Who coined the term ‘linkage’? 

QUESTION ID:85

A microbial biocontrol agent that can be used to control butterfly caterpillars is: 

QUESTION ID:86

A fall in glomerular filtration rate (GFR) activates: 

QUESTION ID:87

Which of the following vertebra is formed from four vertebrae? 

QUESTION ID:88

Sarcomere is: 

QUESTION ID:89

Ends of long bones are covered with: 

QUESTION ID:90

The joints between the carpal bones are: 

QUESTION ID:91

How many fragments will be generated on the digestion of a closed circular DNA molecule with a restriction enzyme having six recognition sites on the DNA? 

QUESTION ID:92

The polymerization of the gel used in PAGE occurs between polyacrylamide and: 

QUESTION ID:93

Suppose there is a deletion of 5 coding DNA nucleotides 234 to 238 position, which of the following is the correct way to depict it according to HGVS format?  

QUESTION ID:94

Biotechnologies consisting of the use of biological systems (bacteria) for the manufacture, transformation or degradation of molecules through enzymatic or fermentation processes for industrial purposes, are called: 

QUESTION ID:95

Which of the following is not a component of downstream processing? 

QUESTION ID:96

Plasmids are used as cloning vectors for which of the following reasons? 

QUESTION ID:97

The first clinical application of gene therapy over a 4-year-old girl was for: 

QUESTION ID:98

The diagram which shows the arrangement of metaphasic chromosomes according to their position of centromere is called: 

QUESTION ID:99

How many types of histone molecules are found in nature? 

QUESTION ID:100

During DNA replication the synthesis of the leading strand of DNA results in fragments known as: 

QUESTION ID:101

The role of Aminopterin in HAT media for monoclonal antibody production is: 

QUESTION ID:102

Guanidinium group is present in: 

QUESTION ID:103

Which component of proteins absorb UV light at 280 nm? 

QUESTION ID:104

Sodium fluoride used in sugar estimation inhibits: 

QUESTION ID:105

Which of the following is required for porphyrin synthesis? 

QUESTION ID:106

In tricarboxylic acid (TCA) cycle, fumarate is converted to malate by: 

QUESTION ID:107

Pyridoxal phosphate is used as a coenzyme in various biological reactions. It transfers: 

QUESTION ID:108

The patient is to be administered with 250 ml of normal saline per hour using adult infusion set. How much should be the drop rate? (1 ml = 20 drops) 

QUESTION ID:109

How much financial incentive is given in the sponsored scheme ‘Nikshya Poshak Yojana’ for nutritional support to each notified tuberculosis (TB) patient under National Health Mission (NHM) per month for duration the patient is on anti-TB treatment? 

QUESTION ID:110

Early ambulation in postoperative period prevents which complication? 

QUESTION ID:111

One year old is suspected for bacterial meningitis, for which lumbar puncture is performed. Which of the following laboratory finding of spinal fluid would support the diagnosis? 

QUESTION ID:112

Growth chart or ‘Road to Health’ is a visible display of: 

QUESTION ID:113

Which of the following RNA constitutes 90 percent of the total cellular RNA? 

QUESTION ID:114

In sequence alignment by BLAST, each word from query sequence is typically _______ residues for protein sequences and _______ residues for DNA sequences. 

QUESTION ID:115

If the purpose is to calculate the probability of one event and a second event, the odds scores for the events are: 

QUESTION ID:116

Cryo-preservant used for cells consists of: 

QUESTION ID:117

How many unusual bases are observed in a tRNA molecule? 

QUESTION ID:118

COVID-19 caused by: 

QUESTION ID:119

What are the Yamanaka factors used for iPSCs reprogramming? 

QUESTION ID:120

Hybridomas are immortalized for production of unlimited supply of monoclonal antibodies by which of the following: 

QUESTION ID:121

Niemann-Pick disease is a: 

QUESTION ID:122

The electrophoretic technique used to separate very large DNA segments is: 

QUESTION ID:123

The process by which normal serum enhances phagocytosis is called: 

QUESTION ID:124

Cluster of differentiation (CD) molecules are present on: 

QUESTION ID:125

Ligand for TLR3 receptor is: 

QUESTION ID:126

Which of the following mechanisms allows complete absorption of glucose from the intestinal lumen into cytosol of enterocyte? 

QUESTION ID:127

The molecular mass of IgG is 150 KDa and that of the antigen-antibody complex formed in the presence of antigen excess is 300 KDa. The molecular mass of antigen is: 

QUESTION ID:128

All types of chemical forces are involved in antigen-antibody interaction, EXCEPT: 

QUESTION ID:129

Predominant antibody in serum is: 

QUESTION ID:130

Which of the following method cannot be used to determine the three-dimensional structure of a protein? 

QUESTION ID:131

During the peak summer and winter the frogs take shelter in deep burrows to protect them from extreme heat and cold. This is called as: 

QUESTION ID:132

Which of the following pairs of organisms are uricotelic? 

QUESTION ID:133

The factor that leads to the Founder’s effect in a population is: 

QUESTION ID:134

Germinal centres of lymph node and spleen perform which of the following function? 

QUESTION ID:135

The type of cleavage found in mammalian embryo is: 

QUESTION ID:136

Escherichia coli is used as an indicator organism to determine pollution of water with: 

QUESTION ID:137

Certain bacteria living in the soil convert nitrates into nitrites and then to free nitrogen. Such bacteria are termed as: 

QUESTION ID:138

The prebiotic atmosphere of the earth was of a reducing nature. It was transformed into an oxidizing atmosphere of present day due to emergence of: 

QUESTION ID:139

Fossils are generally found in: 

QUESTION ID:140

Which of the following is used as an atmospheric pollution indicator? 

QUESTION ID:141

Kranz anatomy occurs in: 

QUESTION ID:142

Which one of the following is an example for homology? 

QUESTION ID:143

Hormone responsible for growth of the root in micropropagation is: 

QUESTION ID:144

Long plants are able to stand erect due to presence of: 

QUESTION ID:145

Which of the following reproduces sexually only once in its life time? 

QUESTION ID:146

Which one of the following is a breed of cattle? 

QUESTION ID:147

Which one of the following is a marine fish? 

QUESTION ID:148

The male reproductive tract develops from: 

QUESTION ID:149

Which of the following is the glycoprotein layer surrounding oocyte? 

QUESTION ID:150

Sebaceous glands secrete through which mode of secretion?