Multiple Choice
"Trisomy 21" (three 21st chromosomes) best describes
A) Huntington's disease.
B) Down syndrome.
C) Phenylketonuria (PKU) .
D) sickle-cell trait.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q11: Length of gestation (i.e., number of weeks
Q14: Any substance that causes abnormal prenatal development
Q16: Which event is characteristic of the period
Q26: A typical fertilized egg contains a total
Q35: When the chromosomes in a pair are
Q76: One key purpose of the amniotic fluid
Q108: Because it involves prolonged physical effort, the
Q120: Which event occurs following in vitro fertilization?<br>A)
Q133: The embryo is connected to the uterus
Q150: The correct order of prenatal development is