NEET2016ZoologyEvolutionActual
Assertion : Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually reproducing organisms do not change, provided that matings, occur at random. Reason : The disturbing influences include mutation, gene flow, genetic drift, genetic recombination and natural selection.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
Step-by-step solution
According to Hardy-Weinberg principle gene frequencies will remain constant if there is no mutation, no gene flow, no genetic drift, no genetic recombination, no natural selection pressure and mating occurs at random.