The earliest gender-influencing event during pregnancy is the
a. identification of the baby's sex with ultrasound imaging.
b. inheritance of either an X or Y chromosome from the father's sperm.
c. release of mullerian inhibiting substance (MIS).
d. parents' reaction to the looks of the baby's genitals.
Question 2
A baby's responsiveness to operant conditioning improves its social relations with others because
a. bad habits are reduced via extinction.
b. parent and baby reinforce each other's attention.
c. the parent occasionally administers negative punishment.
d. most babies enjoy actively controlling the crib mobile.
