Higher and narrower peak in the diagrammatic representation of operation of natural selection indicates
(a) stabilising selection
(b) directional selection
(c) disruptive selection

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Only (b)

Only (a)

Only (c)

Both (a) and (c)

answer is B.

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Detailed Solution

In stabilising selection, the average phenotype is selected over mutants and so the peak becomes higher and narrower in the graph.

In the diagram given, (a) represents stabilising selection, (b) represents directional selection and (c) represents disruptive selection.

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