Life Sciences
GATE XL year:2024 PYQs
Build your understanding with focused practice from past exam papers.
Questions 61–70 of 122. Imported answers require independent review unless marked reviewed.
Question 61
Open questionXL-RMSQ2 marksNeeds review
Which of the following combinations of plant diseases and the types of their causal organisms is/are CORRECT?
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Open questionXL-RMSQ2 marksNeeds review
Identify the CORRECT combination(s) of plant natural products and the categories they belong to.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 63
Open questionXL-RMSQ2 marksNeeds review
Identify the CORRECT combination(s) between the enzymes in Group 1 and the reactions in Group 2 they catalyze.
Group 1: (P) Cinnamate-4-hydroxylase; (Q) Glycerate kinase; (R) PEP carboxylase; (S) Nitrate reductase.
Group 2: (i) L-phenylalanine → Cinnamic acid; (ii) Glyceraldehyde 3-phosphate → dihydroacetone phosphate; (iii) Glycolate + O₂ → Glyoxylate + H₂O₂; (iv) NO₃⁻ + NAD(P)H + H⁺ → NO₂⁻ + NAD(P)⁺ + H₂O
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 64
Open questionXL-RNAT2 marksNeeds review
In a genetic cross between two pure-line parents differing in the two independent 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).
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Open questionXL-RNAT2 marksNeeds review
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).
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Open questionXL-SMCQ1 markNeeds review
Which one of the following bacterial species can cause atypical pneumonia?
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Open questionXL-SMCQ1 markNeeds review
Which one of the following organisms has axial filaments?
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Open questionXL-SMCQ1 markNeeds review
Who among the following scientists was the pioneer in development of chemotherapy?
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Open questionXL-SMCQ1 markNeeds review
In which of following processes, glutaraldehyde is used as a sterilizing agent?
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Open questionXL-SMCQ1 markNeeds review
The most abundant class of immunoglobulins in serum is __________.
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