Life Sciences
GATE XL format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 741–750 of 812. Imported answers require independent review unless marked reviewed.
Question 33
Open questionXL-QMCQ2 marksNeeds review
In an in vitro dehydrogenation reaction of succinate catalyzed by succinate dehydrogenase, malonate is added. Which one of the following curves represents the effect of malonate on the catalysis of succinate dehydrogenase?
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Cardiotonic steroids have ability to strengthen heart muscle contraction due to the fact that these steroids
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A newly isolated circular plasmid gave two bands of 3.2 and 3 kb on digestion with EcoRI and two bands of 5.0 kb and 1.2 kb on digestion with BamHI. Double digestion with EcoRI and BamHI, yielded four bands of 2.6 kb, 2.4 kb, 0.8 kb and 0.4 kb. Digestion with SalI led to disruption of ampicillin resistance gene cassette. The correct restriction map is
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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 36
Open questionXL-RMCQ1 markNeeds review
As per the Angiosperm Phylogeny Group (APG II, 2003) classification, which of the following plant families comprises of only single genus with single species?
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A cavity, lysigenous in origin and possessing volatile oil is found in the pericarp of one of the following plants. Identify the CORRECT answer.
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Among the following, which genetic material is naturally inherited through maternal inheritance in higher plants?
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A typical floral meristem differs from shoot apical meristem on the basis of
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Which of the following plant hormones is a carotenoid-cleavage product?
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Two of the vir operons of Ti plasmid in Agrobacterium tumefaciens are constitutively expressed. Identify the CORRECT pair.
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Which of the following fungi is an example of obligate biotrophic plant pathogen?
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