Chapter 8

NCERT
Class 10
Science
Solutions
1. If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?

Question:

If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?

Answer:

In the given question we will see that trait B will be seen earlier. This happens because, in the case of an asexually reproducing population, the organisms will be the exact copy of their parents. Now if there is a mutation just in the case of trait A as we see, it will take time to appear in the population. Trait B being the majority will appear first.

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