A 42-year-old pregnant patient asks the nurse if the baby will be born with Down syndrome because of a chromosomal abnormality. What chromosomal abnormality does the nurse know this to be?

Question

Quizplus · Accepted Answer

Down syndrome, also known as Trisomy 21, is caused by an extra copy of chromosome 21, resulting in a total of 47 chromosomes in the affected individual. Therefore, the correct answer is D, as it describes having an extra member of a chromosome pair.

A 42-Year-Old Pregnant Patient Asks the Nurse If the Baby