Dominant Inheritance. When a trait is dominant, only one allele is required for the trait to be observed. A dominant allele will mask a recessive allele, if present.
To be afflicted by an autosomal dominant inheritance, a person just needs one mutant copy of the gene. Each affected person typically contains a single parent who is also affected.
Autosomal dominant or dominance is a pattern of genetic inheritance that occurs within an autosome (non-sex chromosome). The way we look and function is most commonly the result of dominance of one parental gene over the other.
Dominant Inheritance Image
