Life Sciences
GATE XL kind:question PYQs
Build your understanding with focused practice from past exam papers.
Questions 951–960 of 1235. Imported answers require independent review unless marked reviewed.
Question 6
Open questionXL-TMCQ1 markNeeds review
The finches on the Galapagos Islands have widely differing beaks adapted according to their diets. This is an example of
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Which one of the following animals is named as a “living fossil”, where the animal is persisting above 400 million years without further major morphological evolution?
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Consider the given peptide, Ala-Glu-Val-Asn-Ile-Asp-Pro-Asp-Gln-Gly-Asp. The net charge on the peptide at pH 1.0 will be_____
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The total number of complementary determining regions (CDRs) in the functional form of an IgM antibody is ______
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In a 150 base pair double stranded B-DNA, 70% of purines are adenine bases. The total number of hydrogen bonds (Watson–Crick base pairing) in the DNA will be _____.
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Open questionXL-TMCQ2 marksNeeds review
Match the given vitamins in Column I with the related proteins in Column II
Column I
a) Vitamin C
b) Vitamin K
c) Vitamin A
d) Vitamin B₁
Column II
Thrombin
Rhodopsin
Pyruvate dehydrogenase
Prolyl hydroxylase
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Open questionXL-TMCQ2 marksNeeds review
Match the following terms in Column I with the appropriate explanation in Column II
Column I
a) Spliceosome
b) Peroxisome
c) Lysosome
d) Centrosome
Column II
Cell scavengers
Metabolism of long chain fatty acids
Microtubules
Post transcriptional modifications
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Match the respective behaviour given in Column I with the appropriate explanation in Column II
Column I
a) Agonistic behaviour
b) Hierarchical behaviour
c) Altruistic behaviour
d) Cooperative behaviour
Column II
Individual behaviour where fitness of other increases at the expense of self
Individuals contribute towards enhancement of mutual fitness
Aggressive behavior of individuals within a population
Existence of different levels of dominance within a population
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Open questionXL-TMCQ2 marksNeeds review
Closure of neural tube during neurulation is the process in which neural tube eventually forms a closed cylinder that separates from surface ectoderm. Which one of the following terms is linked to the failure in the closure of entire neural tube i.e. brain and spinal cord, over the body axis?
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Open questionXL-TMCQ2 marksNeeds review
Which one of the following factors does NOT contribute to “allopatric speciation”?
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