Question Detail
Question
A normal human female has 46 chromosomes. How many chromosomes will be found in her down syndromic child? A. 22 B. 23 C. 45 D. 47
Correct Answer
Option D is the correct answer.
Detailed Explanation
Down syndrome is typically caused by trisomy 21, where an individual has three copies of chromosome 21. This results in a total of 47 chromosomes instead of the usual 46.
Hint
They have one extra chromosome.