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.
Nasal secretions are assumed to be the source of S. equi in these animals. A horse just recovering from strangles may have prolonged shedding of S. equi. These horses are known as long-term sub-clinical carriers of S. equi, and can be the source of infection for naive naÃ¯ve. horsest can survive for long periods of time out of the body and horses can become infected with the bacteria months after an infection had been noted an a specific property. The bacteria is transmitted by inhalation of dust and respiratory secre-tions that contain the organism.