Multiple choice questions XXXXVI — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are
(i) Large chromosome (ii) Small chromosome (iii) Y-chromosome (iv) X-chromosome

(iii) and (iv)
(ii) and (iv)
(i) and (ii)
(iii) only

2. A zygote which has an X-chromosome inherited from the father will develop into a

Girl
X-chromosome does not determine the sex of a child
Either boy or girl
Boy

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