39. Haemophilia is a condition in
which blood fails to clotor plots
only very slowly. Studies of Jfhis
human sex-linked trait show that
(a) every X chromosome carries
the dominant allele.
(b) a Y chromosome never carries
the dominant allele.
(c) both X and Y chromosomes
can bear the recessive allele.
(d) neither X nor Y chromosomes
can bear the recessive allele.
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Answer:
the answer will be (C) if I'm not wrong.
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