Life Sciences
GATE XL purpose:exam-prep PYQs
Build your understanding with focused practice from past exam papers.
Questions 61–70 of 1235. Imported answers require independent review unless marked reviewed.
Question 61
Open questionXL-RMSQ2 marksNeeds review
Which of the following combinations of photosynthetic carbon cycle in plants, and its matched biochemical reaction is/are correct?
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Open questionXL-RMSQ2 marksNeeds review
Choose the correct combination(s) of alkaloid, source plant, and their main commercial use.
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Open questionXL-RMSQ2 marksNeeds review
Which of the following statements is/are correct about plant movement?
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Open questionXL-RNAT2 marksNeeds review
Two completely linked genes A and B regulate plant height and flower colour, respectively, where the recessive mutant aa is dwarf bearing red flowers and the recessive mutant bb is tall bearing white flowers. If an F1 individual of the aaBB × AAbb cross is crossed to the mutant aabb, then the probability of an individual in the next generation bearing white flower would be __________ (Round off to two decimal places).
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Open questionXL-RNAT2 marksNeeds review
An enzyme following Michaelis-Menten kinetics, catalyses a reaction with an initial velocity (V₀) of 2 μM s⁻¹ at the substrate concentration of 10 μM. If the turnover number (kcat) of the enzyme for the given substrate is 500 s⁻¹ and the enzyme concentration in the reaction is 0.01 μM, then the value of the Michaelis-Menten constant (Kₘ) would be__________ × 10⁻⁶ M (in integer).
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Open questionXL-SMCQ1 markNeeds review
Which one of the following statements about microbiological stains is CORRECT?
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Open questionXL-SMCQ1 markNeeds review
The genome of which one of the following viruses encodes reverse transcriptase?
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Open questionXL-SMCQ1 markNeeds review
Protoplasts can be generated from
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Open questionXL-SMCQ1 markNeeds review
Which one of the following molecules is the master regulator of the planktonic-surface transition in Pseudomonas aeruginosa during biofilm formation?
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Open questionXL-SMCQ1 markNeeds review
Which one of the following is a protozoal disease?
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