McqMate
| Q. |
Down's Syndrome is caused by an extra copy of chromosome number 21. What percent age of off spring produced by an affected mother and a normal father? AIPMT - 2003 |
| A. | 100% |
| B. | 75% |
| C. | 50% |
| D. | 25% |
| E. | cessive |
| Answer» D. 25% | |
View all MCQs in
BiologyNo comments yet