Why are individuals with an extra chromosome 21, which causes Dow...

Question

Why are individuals with an extra chromosome 21, which causes Down syndrome, more numerous than individuals with an extra chromosome 3 or chromosome 16?
a. There are probably more genes on chromosome 21 than on the others.
b. Chromosome 21 is a sex chromosome and chromosomes 3 and 16 are not.
c. Down syndrome is not more common, just more serious.
d. Extra copies of the other chromosomes are probably fatal.

Accepted Answer

Hello everyone and welcome to today's video. So today we have that wage of the following happens during non disjunction that results in the unique Qu'il distribution of chromosomes in the daughter cells. So if you can't recall, I want to help you recall what this non disjunction is going to be. And this is the failure of sister promoted two separate drink and a face. So keep this in mind as we solve the problem. So since we have the failure of sister chromosomes to separate during an a face, then what is going to cause non disjunction or what is going to cause the unique Qu'il distribution of chromosomes in the other cells is going to be the sum of the chromosomes fail to properly separate during cell division. That is going to be the final answer to this question. And I really hope this video helped you.

Watch next