Which method for studying genetic influences fails to control for the possible effect of sharing a common
environment?
A) association studies B) linkage analysis
C) pedigree method D) adoption method
Question 2
Highly coordinated children are picked out at an early age by coaches and given special opportunities to
excel at sports. Extraverted children seek out social situations and become unusually comfortable with
strangers.
Both of these phenomena illustrate
A) how the environment shapes one's genetic endowment.
B) genotype-environment correlations.
C) the polygenic effect of chromosomes on behavior.
D) the power of the phenotype over the genotype.