Previous Year Questions

QUESTION ID:2

In the ¹H NMR spectrum, which one of the following compounds will show a triplet?

QUESTION ID:3

Antibody binds to antigen in solution through 

QUESTION ID:4

Plasmid mediated antibiotic resistances in bacteria are acquired by 

QUESTION ID:5

Which of the following statements is/are CORRECT for G protein–coupled receptor (GPCR) mediated signaling? 

QUESTION ID:6

Glucose is incubated with enzymes of glycolytic pathway (except pyruvate kinase), gamma ³²P-ATP and unlabeled inorganic phosphate. Which of the following products is/are formed?

QUESTION ID:7

In a double stranded DNA, which of the following ratios is/are always equal to 1? A, T, G and C denote the number of bases. 

QUESTION ID:8

Consider the equation 𝑥³ − 1 = 0. If one of the solutions to this equation is 1, the other solution(s) is/are

QUESTION ID:9

Which of the following statements is/are CORRECT regarding self-inductance of a long solenoid having cross sectional area (𝐴), length (𝑙) and having 𝑛 turns per unit length filled with material of relative permeability 𝜇𝑟 ?

QUESTION ID:10

If an optician prescribes a corrective lens of power -2.0 D, the required lens 

QUESTION ID:11

Which of the following statements is/are CORRECT? 

QUESTION ID:12

Which of the following pairs of compounds can be distinguished by iodoform test performed in ammonium hydroxide? 

QUESTION ID:13

The total number of genetically different types of gametes that will be produced by a heterozygous plant carrying the genotypes AABbCc is _________. 

QUESTION ID:14

A healthy individual has the cardiac output of 5.5 L and heart rate of 72 beats per minute. The stroke volume of the individual is _________ mL.  

QUESTION ID:15

Both strands of a DNA molecule are labeled with radioactive thymidine and are allowed to duplicate in an environment containing non-radioactive thymidine. The number of DNA molecules that will contain radioactive thymidine after three duplications is _________. 

QUESTION ID:16

The number of cycles required for complete degradation of Palmitic acid (16 Carbon) by β-oxidation is __________. 

QUESTION ID:17

The value of log_n 4^-16 is -32 The value of n is _________.    

QUESTION ID:18

The determinant of the matrix   is _________.

QUESTION ID:19

The equivalent capacitance of following assembly of capacitors is ________ µF.

QUESTION ID:20

The stability of the following carbocation arises from hyperconjugation with _________ number of hydrogen atoms.

QUESTION ID:21

Oxidation state of Fe in the complex K₃[Fe(CN)₅NO] is (+) __________.

QUESTION ID:22

The mechanism of the following reaction involves the formation of a __________ membered ring.

QUESTION ID:23

The concentration of a purified enzyme is 10 mg/mL. Ten microlitres of the enzyme solution in a total reaction volume of 1 mL catalyses the formation of 20 nanomoles of product in one minute under optimum conditions. The specific activity of the enzyme is _________ unit/mg. 

QUESTION ID:24

A 100 nucleotide-long single stranded poly-(A) is synthesized from adenosine monophosphate (AMP) at physiological pH. 

(Atomic mass of C = 12, H = 1, O = 16, P = 31; at physiological pH, Molecular mass of AMP = 345). The molecular mass of the resulting poly-(A) at physiological pH is ___________.

QUESTION ID:25

If a colour-blind woman marries a normal man, the chance that their boy child will be colour-blind is ________%. 

QUESTION ID:26

For a 0.1 M aqueous solution of lysine, the pH at which it carries no net charge is ___________.

(pK_a values for: α-carboxylic group = 3.1, α-amino group = 8.0, ε-amino group = 10.8) 

QUESTION ID:27

For a = ________, the following simultaneous equations have an infinite number of solutions:

QUESTION ID:28

If A and B are events such that  the value of  is ___________.

QUESTION ID:29

An ultrasound signal of frequency 50 KHz is sent vertically down into a medium. The signal gets reflected from a depth of 25 mm and returns to source 0.00005 seconds after it is emitted. The wavelength of the ultrasound signal in that medium is ________ cm. 

QUESTION ID:30

The relationship between the applied force F(X) (in Newton) on a body and its displacement X (in metre) is given below. The total amount of work done in moving the body from X = 0 to X = 4 m is ___________ Joule.

QUESTION ID:31

The number of axial C-H bond(s) in the major product (P) of the given reaction is ________.

QUESTION ID:32

A first order reaction is 87.5% complete at the end of 30 minutes. The half-life of the reaction is __________ minute(s).