Question

16. The genetic variation that leads to evolution can occur when genes from

one population are introduced into the gene pool of a different population. This
process is known as

A.mutation
B. crossing over
C. natural selection
D. gene flow

Answer 1

I think it’s B because when genes are introduced to each other they go through a phase that’s known as recombination and DNA exchange paired with each other they swap when they cross over

Answer 2

C. natural selection