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Which type of selection is industrial me...

Which type of selection is industrial melansim observed in month, Biston betularia?

A

Stabilising

B

Directional

C

Disruptive selection

D

Artificial

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The correct Answer is:
B

In directional selection, the population changes towards one particualr direction. It means this type of selection favours small or large sized indiviudals and more individuals of that type will be present in next generation. The mean size of the population changes. Examples are evolution of DDT resistant mosquitoes, industrial melansim in peppered moth and evolution of giraffle.
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