A womanâs sense of smell is much stronger than a manâs. The portion of women's brains that is devoted to scent detection is larger than that of men's. One theory is that women require a greater sense of smell for selecting a suitable mate.
Some ridgebacks are born ridgeless. Rhodesian ridgebacks are one of the most unique dogs on the planet. Named for the noticeable ridge of hair that grows backwards along their spine, these clever dogs are easy to spot in a crowd. However, not all ridgebacks are born with this distinctive patch of hair.ome puppies are born without the ridge, but it is a disqualifying fault according to the American Kennel Club. The lack of ridge is the result of a genetic flaw that is spread through poor breeding practices.
MPS II, Hunter syndrome or iduronate sulfatase deficiency, is caused by lack of the enzyme iduronate sulfatase. Hunter syndrome has two clinical subtypes and (since it shows X-linked recessive inheritance) is the only one of the mucopolysaccharidoses in which the mother alone can pass the defective gene to a son.lthough no studies have been done to determine the frequency of MPS I in the United States, studies in British Columbia estimate that 1 in 100,000 babies born has Hurler syndrome. The estimate for Scheie syndrome is one in 500,000 births and for Hurler-Scheie syndrome it is one in 115,000 births.