Categories > genetics > Genetic variation > 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

genetics

Question: 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) 25%
2) 100%
3) 75%
4) 50%
Solution: Explanation: No Explanation
Genetic variation

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