While there have only been a few studies of the brain structures ...

[daltonest1984]

While there have only been a few studies of the brain structures of same and different sex-orientation, the most promising  and controversial  by LeVay have found differences in the ___________ that may be correlated with sexual orientation.
 
  a. cerebral cortex
  b. hypothalamus
  c. pineal gland
  d. cingulate

Question 2

With regard to the concept of a gay gene, the textbook concludes that
 
  a. there is strong evidence that a gene or small set of genes is responsible for a large percentage of the variance in the cause of same-sex sexual preference.
  b. there is weak to moderate evidence that a gene or small set of genes is responsible for a large percentage of the variance in the cause of same-sex sexual preference.
  c. any gene that is associated with sexual orientation will only confer a predisposition rather than definitively cause same-sex orientation.
  d. there is currently no evidence to support the concept of genetic component to the cause of same sex orientation.

[irishcancer18]

Answer to Question 1

Answer: b: hypothalamus

Answer to Question 2

Answer: c: any gene that is associated with sexual orientation will only confer a predisposition rather than definitively cause same-sex orientation.

[daltonest1984]

Excellent

[matt95]

TYSM