Question

45
Down syndrome is not inherited right?
Ans ASAP
Ans given is 1
Q.45. Down's syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder?
(a) 50 %
(b) 25 %
(c) 100 %
(d) 75 %

Answer 1

Dear student,

There are very fewer chances of inheriting a disease like Down syndrome. But if one of the parents is affected, then this can be seen in the progeny.

Regards.