Multiple Choice Questions · Q6
Q.Identify the wrong statement regarding evolution.
(a) Darwin's variations are small and directional.
(b) Mutations are random and non-directional.
(c) Adaptive radiations lead to divergent evolution.
(d) Mutations are non-random and directional.
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Start your 14-day free trial to unlock the full solution →(d) Mutations are non-random and directional.
Step 1. Darwin's variations are indeed described as small and directional (statement a is correct as printed, and matches the chapter's own comparison of Darwinian variation with mutation).
Step 2. Mutations, according to the mutation theory, are genuinely random and non-directional/directionless (statement b is correct).
Step 3. Differences that develop between homologous organs in different lineages are indeed described in the chapter as examples of divergent evolution, which is linked to adaptive radiation (statement c is correct). …
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