Following a prenatal exam, your physician remarks, "It appears as if your fetus has 47 chromosomes." What would be the most likely response to this information?
A)Concern, as this may indicate that your child has Down syndrome
B)Concern, as this may indicate that your child has sickle-cell anemia
C)Concern, as this may indicate that your child has phenylketonuria (PKU)
D)Relief, since this is a normal number of chromosomes

Question

Quizplus · Accepted Answer

The typical number of chromosomes in a human cell is 46, so a fetus with 47 chromosomes may have Down syndrome, which is caused by an extra chromosome 21.

Following a Prenatal Exam, Your Physician Remarks, "It Appears as If