Yes, hemophilia is an autosomal recessive disorder. Hemophilia A and hemophilia B are inherited in an X-linked recessive pattern.emale chromosome has another X-chromosome, which is dominant and masks the defective gene, and it is quite rare that both â¦ the chromosomes have recessive alleles. But, in males, the Y-chromosome has nothing to over mask the defective gene and the abnormality shows up in the form of the disease.
A papilloma virus (wart) is probably what causes horse sarcoids. A high proportion of sarcoids contain genetic material that is identical, or very closely related, to the bovine papilloma virus (BPV).sually the clinical appearance is adequate to make a diagnosis. Especially if several sarcoids of more than one type are present on the same horse. It is more difficult if only one occult sarcoid is present.
â¢ Once a sarcoid horse, always a sarcoid horse! A horse with one sarcoid is likely to develop. more. â¢ Sarcoids can develop anywhere on the horseâs skin, but more common sites include the. chest, groin, sheath and face (especially around the eyes and mouth). â¢ Sarcoids are likely to recur, regardless of treatment.