Q.45 ‘Migration may enhance or blurr the effects of selection’ comment.
movement of individuals to a different populations (ie., emigration) or movement of
individual into a particular population (i.e., cmmigration) Migration may bring in more such
alleles, that bestow upon the individuals, such adaptations or traits which are selected by
nature. Thus, enhancing the effect of selection.
Similarly, emigration may lead to removal of such alleles that confer better adaptations.
Immigration may also bring in those alleles which confer the traits that are not selected by
nature,i.e., blurr the effects of selection.
Hence, it is justifiable to say that ‘Migration may enhance or blurr the effects of selection.’
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