Match the term with the definition. Point Mutation (like substitution)

A)The mutation still codes for the same amino acid, so no change is seen in the phenotype.

B)Change in one base pair.

C) A type of substitution where the codon for an amino acid gets substituted with a stop codon .

D)Occurs when nucleotides are added or removed from the dna sequence

E)A type of substitution that alters the Dna so that it codes for the wrong amino acid.

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?