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06/10/2021 8:42 pm
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Of a normal couple, half the sons are haemophilic while half the daughters are carriers. The gene is located on
(1) one X-chromosome of mother
(2) X-chromosome of father
(3) both the X-chromosomes of mother
(4) Y-chromosome of father
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06/10/2021 8:43 pm
Correct answer: (1) one X-chromosome of mother