Thalidomide, Now Banned for Use as a Sedative During Pregnancy

Multiple Choice

Thalidomide, now banned for use as a sedative during pregnancy, was used in the early 1960s by many women in their first trimester of pregnancy. Some of these women gave birth to children with limb and organ deformities, suggesting that the drug most likely influenced ________.

A) early cleavage divisions
B) differentiation of bone tissue
C) morphogenesis
D) gastrulation