Which of the following would most likely happen if DNA polymerase were not functioning properly during DNA replication? (2 points)

A. Any of the nitrogenous bases in the DNA strands would be able to form base pairs with each other.

B. The new strands of DNA would not be an exact copy of the original DNA.

C. The two strands of DNA would separate from each other and be unable to reform.

D. Hydrogen bonding between nitrogenous bases would cause the DNA to fold upon itself.

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?