List of top Questions asked in GATE XL

In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as:
Which one of the following pairs of amino acids is NOT incorporated in a polypeptide chain?
Mammalian cells cultured at low temperature (25 to 30 °C) lead to an increased sterol content in the membrane. Elevated sterols in the membrane result in
Which one of the following metabolic intermediates is common to glycolysis, nucleotide synthesis, and glycogen synthesis?
A cube is to be cut into 8 pieces of equal size and shape. Here, each cut should be straight, and it should not stop till it reaches the other end of the cube. The minimum number of such cuts required is:
A newly identified viral protein contains one long a-helix spanning 60 amino acid residues. The number of main chain H-bonds formed in this helix is____ (Answer in integer)
In Michaelis-Menten's equation, if \([S] = 15 K_m\), then the ratio \( v_0/V_{max} \) is ____ (Round off to three decimal places).
Match the metabolic intermediates listed in Column I with their corresponding amino acids given in Column II.
Column IColumn II 
P. a-Ketoglutarate i. Histidine 
Q.Ribose 5-phosphate ii. Glutamate
R. 3-Phosphoglycerate iii.Aspartate
S. Phosphoenolpyruvateiv. Phenylalanine
 v.Serine
Which one of the following organisms has axial filaments?
The mRNA of a hypothetical plant gene HSDU is 800-nucleotide long and encodes a protein of 160 amino acid residues. The calculated length of HSDU CDS would be____ nucleotides (in integer).
Which one or more of the following statements is/are correct in the processing of pre-mRNA in eukaryotes?
A 10 kg tomato pulp is concentrated from an initial moisture content of 90% (wet weight basis) to 35% (wet weight basis). The weight of the concentrate in kg is_____(round off to 2 decimal places).
Which one of the following metabolic intermediates is common to glycolysis, nucleotide synthesis and glycogen synthesis?
Which one or more of the following statements is/are correct regarding the transport and retention of proteins in different cell organelles?
Which one of the following use inorganic compounds as an energy source?
The human genetic code is triplet in nature with 64 codons made using four nucleotides. If the human genetic code was doublet in nature, the number of codons theoretically possible from four nucleotides is_____ (Answer in integer)
The pKa of a buffer solution with pH of 5, consisting of 0.4 M sodium acetate and 0.04 M acetic acid, is____(Answer in integer)
Each of the following alkenes undergoes addition reaction with bromine. Under the reaction conditions, the CORRECT trend in the reaction rates is
The CORRECT option(s) of Y for the following reaction is/are
The CORRECT option(s) of Y for the following reaction is/are
The molecule(s) with non-zero dipole moment is/are
The molecules A and B are a pair of___
The molecules A and B are a pair of
Upon addition of compound X to an aqueous AgNO\(_3\) solution, a white precipitate appears instantly. Also, X does not exhibit geometrical isomerism. The CORRECT option(s) for X is/are:
At t = 0, the bacterial cell number is 10,000 cells/mL. At t = 480 minutes, the cell number increased to 320,000 cells/mL. The mean generation time during this exponential growth period, rounded off to the nearest integer is___ minutes.
Which of the following plant natural products is/are cyanogenic glycoside(s)?
Which of the following plant natural products is/are cyanogenic glycoside(s)?