The below mentioned article provides notes on Edward syndrome. Aneuploidy for the autosome in man often produces both physical and mental defects. One well-known condition of 18-trisomy or E- trisomy is a clinical syndrome and the child generally dies before birth. In 1980, Edward and Patau simultaneously discovered a new syndrome associated with the presence of an extra group E [...]
In this article we will discuss about:- 1. Examples of Sex-Linked Genetic Diseases 2. General Rules of the Sex-Linked Genetics 3. Y-Linked Genes. Examples of Sex-Linked Genetic Diseases: i. X-Iinked Recessive Diseases: Hemophilia A and B, color blindness, Duchenne muscular dystrophy. ii. X-linked Dominant Diseases: Vitamin D resistant rickets with hypophosphatemia, some types of ectodermal anidrotic dysplasia, genetic defects of [...]
In this article we will discuss about the diagnosis of genetic diseases. The most common and most successful test methods for prenatal diagnosis is the examination of amnion cells. Amniotic fluid is extracted by way of a suprapubic amniocentesis. This is done by the penetration of the amnion sac above the symphysis with a hollow needle. The process is almost [...]