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:

Trait B is present in a higher percentage of the species. 

  • It has likely had more time to develop and spread to 60% of the population.
  • So it is likely to have appeared earlier .
  • Trait A must be relatively new as it is present in only 10% of the population.

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo