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.
What is Savant Syndrome. Savant Syndrome is a condition where a person with inferior mental abilities exhibits suprising skills above their apparent cognitive level, and sometimes even above the level of very smart persons.heories on Savant Syndrome. One theory on the cause of Savant Syndrome states that abstract thought is unable to function in a savant mind, or is severely limited. This lack of abstraction over-exercises the more concrete mind functions, and extraordinary talents may develop as a result.