A) Down's syndrome occurs mostly in the children of very young mothers
B) A person suffering from Down's syndrome has 47 chromosomes
C) Down's syndrome is very common and occurs once is every 50 births
D) Down's syndrome is caused when a sperm with an extra X chromosome fuses with a normal egg
Correct Answer: B
Solution :
A person suffering from Down's syndrome has 47 chromosomesYou need to login to perform this action.
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