Down syndrome or trisomy 21, in humans is caused by an extra copy of relatively small chromosome 21. if a male with down syndrome could have children what is the likelihood that his children will also have down syndrome?

a. 0
b. 25
c.50
d. 75
e. 100

The likelihood of a male with Down syndrome having children with Down syndrome can be determined by understanding the process of how Down syndrome is inherited.

Down syndrome is typically caused by having an extra copy of chromosome 21, also known as trisomy 21. This extra chromosome can be passed on from a parent to their child during the process of fertilization.

In the case of a male with Down syndrome, he carries an extra copy of chromosome 21. However, males with Down syndrome are usually sterile, meaning they are unable to produce or father children. This happens because having an extra copy of chromosome 21 can result in abnormal development of reproductive organs and impairments in sperm production.

Therefore, the likelihood of children born to a male with Down syndrome also having Down syndrome is extremely low, if not impossible. In this case, the answer would be option a. 0.

0 because it depends on the mother , not the father