Question

29. (i) If a trait A exists in 10 percent of a population of an a sexually reproducing
species and trait B exists in 60 percent if the same population which trait is likely to
have arisen earlier.
(ii) How does the creation of variation in a species promote survival ?
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Answer 1

Explanation:

Trait B is likely to have arisen earlier as it exists in 60% of population. The variations produced in asexually reproducing species are due to inaccuracies in DNA copying due to environmental factors and variations inherited from one generation to another get accumulated in a subsequent generation.