Chapter 2

A wolf is a conspecific of a a. dog. b. wolf c. cat d. hyena. e. coyote.

All humans are a. mammals. b. vertebrates. c. primates. d. Homo sapiens. e. all of the above

The pattern of mate bonding that is most prevalent in mammals is a. polygyny. b. monogamy. c. polygamy.

Mechanisms that influence the expression of genes without changing the genes themselves are often referred to as a. epigenetic mechanisms. b. gene maps. c. monoallelic expressions d. mitochondrial factors. e. genetic recombination factors.

Phenylketonuria commonly develops in individuals who a. have PKU in their urine. b. are homozygous for the PKU gene. c. eat a phenylalanine-free diet. d. are the children of Norwegian dentists. e. eat a tyrosine-free diet.