Pattern of inheritance in which, when an individual receives contradictory alleles for a trait, only the dominant allele is expressed.
a pattern of inheritance whereby a single gene mutation may lead to a specific genetic disease. Children of an individual affected with a dominantly inherited condition (often referred to as autosomal dominant if the gene is not located on the X or Y chromosomes) have a 50% chance to inherit the gene mutation.
A pattern of inheritance of a characteristic (such as brown eye color) or abnormality in which just one gene or allele is needed to confer the characteristic or abnormality, in contrast to recessive inheritance, which requires two abnormal genes. See also: heterozygous
(See Autosomal Dominant Disorder)
In dominant inheritance pattern, and individual will show signs of the disorder if he or she possesses one of a pair of altered genes. He or she has a 50% chance of passing on the altered gene to his or her children, producing and affected child. search for Dominant inheritance
Inheritance of a mutation from one parent only (or arising anew during egg or sperm formation) can be sufficient for the person to be affected
A method of genetic inheritance, whereby a single abnormal copy of a gene causes disease, even though a good copy of the gene is also present.
The situation in which the inheritance of one copy of a poorly functional or abnormal gene from one parent results in the expression of a syndrome or disease in the offspring. (That is, the one poorly functional or abnormal gene dominates over the normal copy of the gene in the pair, and the syndrome or disease is expressed.)
With autosomal dominant inheritance, there is an error in one of the 22 chromosome pairs. But the damaged gene dominates over the normal gene received from the other parent. If one of the parents has a disease caused by an autosomal dominant gene, all the children will have a 50 per cent risk of inheriting the dominant gene and a 50 per cent chance of not inheriting it. The children who do not inherit the damaged dominant gene will not themselves suffer from the disease, nor will they be able to pass the gene on to future children. This type of inheritance is present for example in Huntington's disease.