Which Is Not Correct About Genetic Effects on Behavior

Multiple Choice

Which is not correct about genetic effects on behavior?

A) In humans,the relative importance of genes versus environment is still debated.
B) In mice,the fosB gene seems to determine if a female will nurture her young.
C) Fraternal twins are a good model system to study the influence of genes on behavior.
D) When two species of lovebirds that differ in the way they carry twigs were mated,their offspring showed an intermediate phenotype.
E) Behavior can be influenced by genes that affect the neural circuitry within the brain.