Author Question: What does the term gene flow refer to? A. the random loss of genes through sampling error B. the ... (Read 67 times)

mckennatimberlake · **on:** Aug 11, 2018

What does the term gene flow refer to?

A. the random loss of genes through sampling error
B. the genetic mutations that occur during meiosis
C. the movement of alleles from one chromosome to another
D. the exchange of genetic material between populations of the same species
E. a random pattern of chromosome mutations

Question 2

The study of sickle-cell anemia and its relation to malarial environments demonstrates that

A. homozygotes lack the capacity to digest lactose.
B. a maladaptive allele may be preserved if it provides an advantage.
C. selection removes recessive alleles from the gene pool faster than it does dominant alleles.
D. heterozygotes are not as selectively fit as are dominant homozygotes.
E. natural selection improves a gene pool by wiping out deleterious alleles.