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.
Photograph of a brain specimen with a large malignant tumor.
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Lobes of the brain
Major Structures of the Eye
Microbes that have become model organisms for genetic studies
Topographical maps of the brain of dogs