What have twin studies told us about sexual orientation?
a) They are clear in supporting that sexual orientation is influenced only by genetic factors.
b) They clearly do not support the idea that sexual orientation is influenced by genetics.
c) Although supporting a genetic influence on sexual orientation, they do not rule out environmental
d) Twin studies have not been done in the matter of sexual orientation.
c
You might also like to view...
Assisted suicide is legal in several countries, including
the Netherlands and Belgium. Africa and India. Canada and Sweden. China and Japan.
Which of the following is an accurate description of female-male differences in friendships in middle childhood?
A) Friendships between boys include more agreement and compliance than girls' friendships. B) Girls' friendships have higher levels of competition and rejection than boys' friendships. C) School-age boys are more competitive with strangers than with friends. D) Boys are more likely to use "controlling" speech in their interactions with their friends.