NEET BIOLOGY

Detailed explanation-1: -The geographic isolation of two populations of a species tends to increase differences between their gene pools because it A. prevents interbreeding within each population.

Detailed explanation-2: -The central idea here is that when populations are geographically separated, they will diverge from one another, both in the way they look and genetically. These changes might occur by natural selection or by random chance (i.e., genetic drift), and in both cases result in reproductive isolation.

Detailed explanation-3: -Geographic isolation occurs when two populations are separated by geographic barriers such as rivers, mountains, or bodies of water. For example, the Kaibab squirrel is a subspecies of the Abert’s squirrel that formed when a small population became isolated on the north rim of the Grand Canyon.

Detailed explanation-4: -It essentially isolates the reproduction of individuals of the population associated with that species. The two populations become more genetically distinguished over time and could become two separate species with independent geographical ranges.