15. Is it possible for any son
of a couple formed by a
hemophilic man (XhY) and a
nonhemophilic noncarrier
(XX) woman to be hemophilic?

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If mothers are not by the
disease and of the gene (do
have an Xh allele) is impossible
for their to be hemophilic since
X chromosome of males comes
from the mother. sons are
only possible the mother is
hemophilic ( for the
hemophilic gene, very rare situation)
or of an affected X
(XXh).