Question

Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Down syndrome is a genetic disorder that is also called trisomy 21. What would trisomy 21 look like in a karyotype?

Answer 1

Answer:extra chromosome 21

Step-by-step explanation:

Answer 2

Answer: There would be 3 of chromosome 21.

Explanation: Trisomy means 3 copies, so there's 3 copies of chromosome 21 instead of the usual 2.