Sentences with phrase «gene pool upon»

Not exact matches

This is unusual because invasive species with greater genetic diversity often have a greater chance at survival — a more diverse gene pool means more variety in traits of individuals for natural selection to act upon and allow the species to survive and thrive in a new area.
However, with only a small gene pool to draw upon, a genetic bottleneck was created, potentially causing the present - day problems of congenital defects such as cleft palates, spinal deformities and heart, brain and eye deformities.
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