List of top Questions asked in GAT-B- 2021

How much will 1 mole of glucose weigh (in grams) on the Earth (E) and on the Moon (M)?
Given three samples (a) L-Tyrosine (b) D-Tyrosine, (c) Equimolar mixture of L- and D-Tyrosine, which one of the following methods can help in the identification of the samples?
From the purification table, what is the overall protein yield?


Calculate the approximate concentration of a solution with molar extinction coefficient = $650 \text{ M}^{-1}\text{cm}^{-1}$, Path length = 1 cm and Absorbance = 1.0.
A student observed a decrease in Western blotting signal for PTEN in cancer cells but no change in Northern blotting signal. Which statement is correct?
Which one of the following is a receptor for HIV-1?
Zoonotic viruses are those that can be transmitted
Which one of the following DNA sequences can act as genetic markers?
Given the molecular weight of Glycine is 75, what would be the molecular weight of Gly-Gly dipeptide?
Which of the following is NOT a genetic disorder?
Which one of the following attribute of a macromolecule is modulated by Molecular dynamics simulations?
Disulfide bonds are identified using the distance between the side-chains of which one of the following sulphur-containing residue pairs?
The two strands in double-helical DNA are held together by hydrogen bonds between
PSSM stands for
Which organ is used for isolation of activated B lymphocytes (plasma cells) for monoclonal antibody production?
The only genetically encoded amino acid without a stereoisomer is
Several DNA viruses can cause latent infection by their ability to
A virus-X requires endocytosis for infection and replicates in the cytosol. De-proteinized genome of the virus is non-infectious. X is a
Which one of the following vaccine was developed by Louis Pasteur?
Here are four statements about Major Histocompatibility Complex (MHC).
A. MHC-I is expressed by nearly all nucleated cells
B. MHC-II is expressed by antigen presenting cells and they present antigen to cytotoxic T cells
C. Only Helper T cells and not the cytotoxic T cells can recognize antigen in complex with MHC-II
D. Natural Killer cells express a variety of receptors that engage with MHC-II
Which of the above statement(s) is true?
Papain digestion of an IgG predominantly results in the formation of
Which one of the following statements about central memory T cells is true?
The first virus to be discovered was
Which among the following enzymes enables integration of the retroviral genome into the host genome?
What is the median of the data given below?
2, 2, 0, 4, 12, 10, 6, 8