Brain development in a fetus whose mother contracted German measles early in the pregnancy is impaired because the rubella virus
A) alters chromosome number.
B) induces an error of metabolism within brain cells.
C) produces toxins that interfere with the chemical signals that control brain development.
D) deletes key enzymes within the brain.
E) alters neurotransmitter release in the neural tube.

Question

Quizplus · Accepted Answer

The rubella virus produces toxins that interfere with the chemical signals that control brain development, leading to impaired brain development in fetuses whose mothers contracted the virus early in pregnancy.

Brain Development in a Fetus Whose Mother Contracted German Measles