The precise percentages of ancient features retained within a breeding population are based upon all of the following except:​

A) ​amount of genetic isolation
B) ​amount of inflow from new genes
C) ​reproductive capacity of the population
D) ​development of sophisticated tools

Breeding Population

A group of organisms of the same species that interbreed and produce fertile offspring in a particular geographic area.

Genetic Isolation

A reduction in genetic variation that occurs when a population is geographically separated from other populations, potentially leading to speciation.

Reproductive Capacity

The potential or ability of an organism or population to produce offspring in a given environment.