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Question : [A]: Random mutations together with genetic drifts and selection pressure establish ge- netic difference and morphological and physiological variations in formerly identical populations.[R]: These differences generally accumulate and thus lead to the establishment of clines, geographical races and finally distinct sub- species.

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If both A and R are TRUE and R is the CORRECT explanation of A
If both A and R are true but R is not the correct explanation of A
If A is true and R is FALSE
If both A and R are false

ANSWER :A


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