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Question

A woman with $$47$$ chromosomes due to presence of additional $$21$$ chromosome is characterised by.


A
Super femaleness
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B
Turner's syndrome
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C
Down's syndrome
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D
Triploidy
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Solution

The correct option is A Down's syndrome
Down syndrome also known as trisomy 21, is a genetic disorder caused by the presence of all or part of the third copy of chromosome 21.
Hence, a person suffering from it will have 47 chromosomes instead of normal 46.
So, the correct answer is 'Down's syndrome'.

Biology

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