Hemophilia is caused by a sex-linked recessive allele. This means that ________.
A. the gene is found on the Y chromosome
B. a man can give the allele to his son but not to his daughter
C. a son who has hemophilia inherited the allele from his mother
D. women can be carriers but cannot get hemophilia
E. a son who has hemophilia inherited the allele from his father
Answer: C
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