A) 50%
B) 25%
C) 100%
D) 75%
Correct Answer: A
Solution :
Downs syndrome is the result of trisomy in which chromosome number 21st contains an extra copy of chromosome (2A + 1) Affected mother will produce 50% normal egg cells and rest 50% eggs are of abnormal type. In normal caseYou need to login to perform this action.
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