Life Sciences
GATE XL Evolution PYQs
Build your understanding with focused practice from past exam papers.
How to practice Evolution
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 10. Imported answers require independent review unless marked reviewed.
Question 100
Open questionXL-TMSQ2 marksNeeds review
Two species of snakes, Species P and Species Q, have overlapping geographic distributions. Species P mainly eats rodents, whereas Species Q mainly eats invertebrates. Which one or more of the following terms describe(s) the process of speciation for these two species?
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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 102
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Which of the following statements is/are correct for the phylogenetic tree depicted below?
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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 88
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Which one of the following is a “post-zygotic” isolating mechanism of speciation?
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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 95
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Consider a large population of a finch species, where both small and big beak sizes are advantageous, and an intermediate beak size is maladaptive. Over a period of 10 years, which one of the following evolutionary processes is most likely to operate on the beak size of this finch population?
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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 7
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The genomes of both human and Drosophila code for an amylase that acts on the same substrate. However, the sequence of nucleotides in the genes encoding the two is dissimilar. This is an example of which ONE of the following types of evolution?
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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 6
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The finches on the Galapagos Islands have widely differing beaks adapted according to their diets. This is an example of
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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 15
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Which one of the following factors does NOT contribute to “allopatric speciation”?
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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 5
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Increase in the existent population of grey peppered moth, Biston betularia, during industrial revolution in Britain is an example of which ONE of the following evolutionary processes?
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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 18
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Which ONE of the following statements is NOT part of the classical Darwinian theory of evolution by natural selection?
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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 77
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One of the most remarkable features of evolution is the formation of amnion and allantois. This appeared for the “first time” in evolutionary time scale in
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