NEET Biology question
The possibility of a female becoming a haemophilia is ...A... rare because mother of such a female has to be at least ...B... and the father should be ...C... Choose the correct option for A, B and C
Answer: (A)
Solution
Since haemophilia is X-linked recessive, a female can only be affected if she is homozygous for the mutant allele (), which requires that she inherit one mutant X from an affected (haemophilic) father () and the other mutant X from at least a carrier (heterozygous,
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