Diseases: Sex Linked And Sex Influenced

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In red/green color blindness, the
broadest form of color blindness that affects six percent of the population, the
cones in the retina that receive green light do not function properly. Unlike
sex linked diseases, sex influenced diseases are not reserved solely for the
male. However, the diseases occur in males much more frequently than in females.
This is because sex influenced diseases occur from imbalances in testosterone,
much more highly concentrated in males. Baldness and gout are two diseases that
are a result of these hormonal imbalances. Baldness is defined as the lack or
loss of hair. Permanent baldness strikes on a hereditary basis because the
hormonal imbalances tend to be passed from generation to generation. Gout is a
hereditary metabolic disorder that involves recurrent acute attacks of severe
inflamm ation of joints.
Sex linked diseases are born when sex genes, that compose two of the 46
chromosomes, are mutated by an error in copying genes in ...

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Foundation. Law has been in the field for over
twenty years and has made many discoveries. In 1972, Law's doctoral thesis
proved that dystrophic muscle cells have abnormal cell membranes. This showed
that the disease was caused by a muscle defect, not a nerve defect as was
previously thought. Since it was clear that it was a muscle defect, Law tried
to transplant both whole and minced muscle into mice. The minced muscle proved
to be too damaged to operate, and the whole muscle was so large that it died
before an adequate blood and nerve supply was developed. At this point, since
the whole muscle was too large but was the only feasible solution, he decided to
transplant whole ...

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