As a proponent of cross-linking theory, Dr. Rennie would be most interested in

a. brain cells

Why is it important to understand the idea of "the family that never was"?

a. We can decrease the amount of violence in today's world by decreasing the divorce rate. b. We should look to the real source of society's problems—disintegration of the traditional family— rather than blame economic factors. c. There was a golden age of family life which, if studied, will help us confront today's problems. d. There was never a golden age of family life; only when we have a realistic idea of how families have and have not worked in the past can we make good decisions about how to support families now.

The cells of a normal zygote consist of a total of _____ chromosomes

Fill in the blank(s) with correct word