List of top Questions asked in GAT-B- 2021

Which class of neurotransmitters would be most affected by a toxin that disrupts microtubules within neurons?
Which of these is a disease of the myelin sheath?
Which of these techniques cannot differentiate between identical twins?
A solid which is not transparent to visible light and whose conductivity increases with temperature is formed by:
Phenyl isothiocyanate efficiently reacts with amino groups of proteins
The Messelson and Stahl experiment showed that DNA replication is
The primary enzyme responsible for direct reversal of UV-induced TT dimers are
Post-translational phosphorylation of proteins usually modify:
If the two disulfide bonds in a protein containing only four Cys residues are broken, and then allowed to reform, how many possible combinations of disulfide bonds are possible?
Which amino acid(s) can be quantified from the acid hydrolysates of proteins?
Aqueous-organic solvents will have:
Which one of the following statements is NOT true about the role of primase enzyme in DNA replication?
During evolution, Mitochondria may have been acquired from
Which of the following statements is NOT true about Adjuvants?
The molecular formula for glycine is $C_{2}H_{5}O_{2}N$. What would be the molecular formula for a linear oligomer made by linking ten glycine molecules together by condensation synthesis?
Based on the phosphoryl transfer potential, identify which one of the following cannot help in the generation of ATP from ADP?
An organelle found in the cytoplasm of all eukaryotic cells containing oxidative enzymes capable of energy generation is
Match various nucleases in the List I to their respective functions in List II.
A 5200-bp vector contains two BamHI sites 450-bp apart. A 1200-bp gene "X" with BamHI sites at ends is cloned after complete digestion. Size of the resultant plasmid?
The difference between a cosmid and a plasmid is the presence of which one of the following additional features in a cosmid?
Which of the following statements are correct?
A. Mitochondria and chloroplast contain DNA and ribosomes for protein synthesis.
B. Mitochondria and chloroplast contain DNA but do not make protein.
C. These organelles are more related to bacteria/cyanobacteria than eukaryotes.
D. They are distinct entities and can survive outside the host cell.
E. They do not contain all the genes necessary to specify all their proteins.
Nick translation is carried out by
A single cell that can divide and give rise to a completely differentiated organism is referred to as
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?
What are the number of moles in 100 ml water (density = 1 g/ml) and in 100 ml heavy water (density = 1.11 g/ml) respectively?