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In directional selection, the peak of the graph gets higher and narrower.(a) True(b) FalseI had been asked this question in an interview for job.This intriguing question comes from Hardy-Weinberg Principle-1 in section Evolution of Biology – Class 12

Answer»

The correct choice is (b) False

For explanation I WOULD say: It is a wrong statement. In DIRECTIONAL selection, the peak of the graph shifts in ONE DIRECTION. It favors one extreme value and eliminates the other extreme and average value. Whereas in STABILIZING selection, the peak gets higher and narrower.



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