LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When Gene Flow occurs ____ (migration of a species to a new habitat) what is likely to happen?
A
that species will die off
B
the new habitat would have more genetic variation
C
the old species would all fight off the new species
D
the new habitat would reject the invasion of a new species
Explanation: 

Detailed explanation-1: -The introduction of new alleles through gene flow increases variability within the population and makes possible new combinations of traits. In humans gene flow usually comes about through the actual migration of human populations, either voluntary or forced.

Detailed explanation-2: -High gene flow in a pathogen increases the size of the population and of the geographical area in which its genetic material occurs. Therefore, pathogens that show a high level of gene flow generally have greater genetic diversity than pathogens that show a low level of gene flow.

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