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Question

In human beings 45 chromosomes/ single X/XO abnormality causes

A
Down's syndrome
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B
Klinefelter's syndrome
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C
Turner's syndrome
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D
Edward's syndrome
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Solution

The correct option is C Turner's syndrome
Turner's syndrome affects only females as the result of a missing or partially missing X chromosome. Hence they have 45 chromosomes or it is also referred to as single X.

So, the correct answer is 'Turner's syndrome'.

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