Down Syndrome

Q.

How does aneuploidy differ from polyploidy? Give an example for each.

Q. Down 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?

1. $100\%$
2. $75\%$
3. $50\%$
4. $25\%$

Q. 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?

1. 50%
2. 25%
3. 100%
4. 75%

Q.

Down’s Syndrome is a classic case of polyploidy.

1. True

2. False