List of top Questions asked in GATE Life Sciences- 2024

Which one of the following tissues/organs is least likely to experience graft rejection when transplanted from a person to an unrelated person?

CREB1 is a eukaryotic transcription factor. In which one of the following compartments of the cell is CREB1 predominantly localized?

Codon bias is correlated with the relative frequencies of which one of the following types of RNA?

Which of the following is/are TRUE about the Escherichia coli chromosome?

Which of the following cocci is/are examples of division in one plane

Which of the following is/are consequence(s) of nitrous acid (HNO2) mediated deamination?

Which of the following is/are active transport mechanism(s) in prokaryotes where the substance is chemically altered during transport across the membrane?

At root nodules, which of the following C4 organic acid(s) is/are transported across the symbiosome membrane and into bacteroids?

Which of the following event(s) occur(s) during translation in prokaryotes?

Which one of the following double-stranded sequences will NOT be recognized by a Type IIP restriction endonuclease?

The most abundant class of immunoglobulins in serum is___

In which of following processes, glutaraldehyde is used as a sterilizing agent

Match the antibiotics in Group I with the microorganisms that produce them in Group II.

Group 1		Group 2
(P)	Streptomycin	(i)	Streptomyces griseus
(Q)	Bacitracin	(ii)	Bacillus licheniformis
(R)	Amphotericin B	(iii)	Streptomyces venezuelae
(S)	Chloramphenicol	(iv)	Streptomyces nodosus

Which one of the following represents the abundance of the organisms found in soil?

Which one of the following redox couples has the highest tendency to donate electrons?

Who among the following scientists was the pioneer in development of chemotherapy?

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).

Identify the CORRECT combination(s) between the enzymes in Group 1 and the reactions in Group 2 they catalyze.

Group 1		Group 2
(P)	Cinnamate-4-hydroxylase	(i)	L-phenylalanine → Cinnamic acid
(Q)	Glycerate kinase	(ii)	Glyceraldehyde 3-phosphate → dihydroxyacetone phosphate
(R)	PEP carboxylase	(iii)	Glycolate + O\(_2\) → Glyoxylate + H\(_2\)O\(_2\)
(S)	Nitrate reductase	(iv)	NO\(_3^-\) + NAD(P)H + H\(^+\) → NO\(_2^-\) + NAD(P)\(^+\) + H\(_2\)O

Identify the CORRECT combination(s) of plant natural products and the categories they belong to.

Which one of the following bacterial species can cause atypical pneumonia?

In a genetic cross between two pure-line parents differing in the two independently segregating traits, plant height (tall vs dwarf) and flower color (purple vs white), all the F1 plants were tall with purple flowers. In a testcross population involving these F1 individuals, the expected percentage (%) of dwarf plants with purple flower would be___ (in integer).

Which of the following combinations of plant diseases and the types of their causal organisms is/are CORRECT?

In wild-type Arabidopsis thaliana, the four types of floral organs (sepal, petal, stamen, carpel) are arranged in concentric whorls from outside to inside. With reference to the ABC model of floral organ patterning, match the homeotic mutants in Group 1 with their respective arrangements of organs in the four whorls given in Group 2.

Group 1	Group 2
(P) A class mutants	(i)sepal, sepal, carpel, carpel
(Q) B class mutants	(ii) sepal, petal, petal, sepal
(R) C class mutants	(iii) carpel, stamen, stamen, carpel
	(iv) sepal, sepal, petal, petal

Match the inhibitors in Group 1 with their respective targets in Group 2.

Group 1	Group 2
P) Oligomycin	(i) Cytochrome bc1 complex
(Q) Antimycin A	(ii) Photosystem II
(R) 3-(3,4-dichlorophenyl)-1, 1- dimethylurea (DCMU)	(iii)K\(^+\) ionophore
(S) Valinomycin	(iv) Fo ATP synthase