Question

multiple - choice question the karyotype from the previous question is of someone who has the genetic disorder, down syndrome. what process went wrong that resulted in the person having an extra chromosome #21? mitosis during the formation of the persons cells meiosis during the formation of either their dads sperm or their moms egg rewatch submit

Explanation:

Down - syndrome is caused by an extra copy of chromosome 21, which occurs due to a non - disjunction event during meiosis in the formation of either the sperm or the egg. Mitosis is the process of cell division for growth and repair in somatic cells and is not related to the formation of the extra chromosome in gametes for Down - syndrome.

Answer:

Meiosis during the formation of either their dad's sperm or their mom's egg