Many of the non-sex determining X-linked genes are responsible for abnormal conditions such as hemophiliaDuchenne muscular dystrophyfragile-X syndromesome high blood pressure, congenital night blindness, G6PD deficiency, and the most common human genetic disorder, red-green color blindness.
Based on a comparison between our data and that of Ito et al. Hereditas 30 : 1 — It is a form of sex linkage. Nevertheless, more studies must be conducted to test this hypothesis. Related articles in Web of Science Google Scholar.
The affected dog presents with easy and excessive bruising and frequent nosebleeds. If a son inherits an X chromosome with the hemophilia gene from the mother, the trait will be expressed and he will have the disorder. Human disorders attributable to multifactorial inheritance alcoholism Alzheimer disease cancer coronary heart disease diabetes epilepsy hypertension obesity schizophrenia.
Dogs may show signs of lameness or stiffness if bleeding in the joints is present. Updated February 07, There are several disorders that are caused by abnormal sex-linked traits.
This entry was posted in DNA Genetics. Some genetic disorders are now known to result from mutations in imprinted genes. Leave a Reply Cancel reply Your email address will not be published. Sex linked is a trait in which a gene is located on a sex chromosome.
Recessive sex-linked traits are much more common in men because they only need one affected X chromosome.
Twenty-one germplasm accessions of three Spinacia species S. Please help improve this article by adding citations to reliable sources. Molecular clocks and nucleotide substitution rates in higher plants. Wilbur Duke University, Durham, N.