Eileen is pregnant with her first child. She wonders when she will be able to feel the fetus moving. The doctor will tell her the fetal movements can be felt between ______ to ______ weeks.

When phenotypes are caused by the combined effect of many separate genes, the pattern of inheritance is referred to as

a. polygenic inheritance. c. codominant. b. dominant-recessive. d. sex-linked inheritance.

One limitation of the ethnographic method is that

A) investigators' cultural values sometimes lead them to misinterpret what they see. B) it provides little information on how children and adults actually behave. C) it relies on unobtrusive techniques, such as surveillance cameras and one-way mirrors. D) it provides little information about the reasoning behind participants' responses.