Definition. Sex-linked diseases are passed down through families through one of the X or Y chromosomes. X and Y are sex chromosomes. Dominant inheritance occurs when an abnormal gene from one parent causes disease even though the matching gene from the other parent is normal.The abnormal gene dominates.efinition. Sex-linked diseases are passed down through families through one of the X or Y chromosomes. X and Y are sex chromosomes. Dominant inheritance occurs when an abnormal gene from one parent causes disease even though the matching gene from the other parent is normal.
Savant syndrome is a rare syndrome in which people with poor mental development or brain injury possess extraordinary mental skills which are difficult to explain scientifically. Sometimes the talents of a savant may go unnoticed.he exact cause of a savant syndrome is not known. A lot of hypotheses have been proposed. Some researchers believe that there is damage to the left hemisphere of brain, which results in compensatory changes in the right side of brain.
Bellâs Palsy and Ramsay Hunt Syndrome Bellâs palsy is a sudden or rapid onset facial paralysis or weakness which develops over hours to a day or two. If the face takes longer than 2-3 days to become paralyzed, the disorder is probably not Bellâs palsy and other causes need to be considered. Bellâs palsy, was formerly thought to be idiopathic or without known cause. The consensus now, is that it is a viral neuritis or viral inflammation of the nerve that makes the face to smile. The viruses which can cause viral neuritis likely represent what are called neurotropic or nerve-loving organisms.