Evolution Question 97
97. Theory of Natural selection dwells on
[1993]
(a) role of environment in evolution
(b) natural selection acting on favourable variations
(c) changes in gene complex resulting in heritable variations
(d) none of these
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Answer : c
Hints & Solution
(c) In 1859 Charles Darwin published his theory of natural selection in the book ‘Origin of Species’. The theory is based on five important observations: All species have great reproductive potential Most populations are stable in size Natural resources are limited Individuals of a population have variations. Most of the variations are heritable. Species with variations selected by nature.
