Name _____________________________ Class _________________ Date __________________ Section Quiz Biology and Behavior Section 4 MULTIPLE CHOICE For each of the following, write the letter of the best choice in the space provided. _____ 1. What are genes? a. strands of deoxyribonucleic acid b. physical traits c. inherited disorders d. basic building blocks of heredity _____ 4. Why are identical twins useful in studying the influences of heredity and environment? a. Identical twins share 50 percent of their genes, so 50 percent of their differences must be environmental. b. Identical twins share 100 percent of their genes, so any differences must be environmental. c. Identical twins are always the same sex and so have similar environmental experiences. d. Fraternal twins are actually more useful in heredity and environment studies. _____ 5. Which chromosome pair determines the sex of a child? a. 3rd b. 22nd c. 23rd d. 46th _____ 2. What is debated in the “naturenurture” issue? a. heredity versus environment b. genes versus heredity c. parents versus children d. personality versus biology _____ 3. Taken to the extreme, the heredity view may suggest what? a. We cannot change anything about ourselves. b. Our parents make us what we are. c. Where we are raised changes what we become. d. Plastic surgery is unethical. Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor. Chapter 3 26 Review and Assessment Resources