The influence of learning on behavior was shown in studies of

A) migrating birds.
B) altruism in human beings.
C) food preferences of garter snakes.
D) nurturing behavior in mice.
E) feeding behavior of baby gull chicks and singing patterns of song birds.

A mating between individuals with different alleles at two loci is known as?

A) Parent cross
B) Plant breeders cross
C) Test cross
D) Dihybrid cross
E) Monohybrid cross

Two genes that are orthologs

A) are derived from a common ancestral gene.
B) arose from gene duplication.
C) always perform the same function.
D) all of the above
E) none of the above