Q. Which of the following is NOT an example of phenotypic plasticity? A. Density-dependent swarming behavior in locusts B. Increase in DDT resistance in mosquitos C. Seasonal variation in plumage colouration in birds D. Temperature-dependent sex determination in turtles Ans: ...
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Q. Natural populations often deviate from Hardy-Weinberg equilibrium. One possible reason for this is (A) no migration (B) no selection (C) random mating (D) small population sizes Ans: small population sizes
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Q. Which of the following is NOT typically a characteristic of early successional pioneer plants relative to late successional plants in a tropical rain forest? (A) Higher shade tolerance (B) Smaller seed size (C) Smaller size at maturity (D) Wind ...
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Q. In which of the following plants is the dominant stage of the life cycle haploid? (A) ...
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Q. Copies of genes that arrive in a particular genome by horizontal gene transfer are known as (A) analogs (B) homologs (C) ohnologs (D) xenologs Ans: xenologs
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Q. In which of the following mating systems is sperm competition likely to evolve? A. Monoandry B. Monogamy C. Polyandry D. Polygyny Ans: Polyandry
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Q. For a species, assuming a relatively short time scale and no evolution, increased interspecific competition will result in a (A) larger fundamental niche (B) larger realized niche (C) smaller fundamental niche (D) smaller realized niche Ans: smaller ...
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Q. Which of the following can be used to test differences between mean tree heights in a tropical versus a temperate forest? A. Binomial test B. Linear regression C. Pearson’s correlation D. Student’s t-test Ans: Student’s t-test
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Q. A plant species found in India produces flowers that are white, fragrant, and tubular. Which of the following is the most likely pollinating agent? (A) Hummingbirds (B) Lorises (C) Moths (D) Wind ...
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Q. The value of the resting membrane potential of a typical neuron is closest to the equilibrium potential of which of the following ions? (A) Ca++ (B) ...
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