One mutated copy of the gene in each cell is sufficient for a person to be affected by an autosomal dominant disorder. Sex-limited inheritance in Drosophila. Breeding experiments with Lepidoptera.
In the ZW sex-determination system used by birds, the mammalian pattern is reversed, since the male is the homogametic sex ZZ and the female is heterogametic ZW. Because of that, it doesn't protect the male. These are traits that are found on either one of the chromosomes that determine sex, or the sex chromosomes.
Conditions resulting from mutations in mitochondrial DNA can appear in every generation of a family and can affect both males and females, but fathers do not pass these disorders to their daughters or sons. The abnormal gene dominates.
A review of neuropsychological and motor studies in Turner Syndrome. Tammimaki A. Behavioral models of impulsivity in relation to ADHD: translation between clinical and preclinical studies. Annual Review of Neuroscience. The phenotypic dissociation between the inattentive subtype, and the remaining subtypes has led some researchers to propose that they should be regarded as nosologically separate entities, underpinned by discrete neurobiologies, and sensitive to distinct treatment regimes Larsson et al.
The pattern of SRY expression prompted researchers to investigate whether its associated protein could act as a transcription factor for important genes in monoamine metabolism.
Illustration of some X-linked heredity outcomes A the affected father has one X-linked dominant allele, the mother is homozygous for the recessive allele: only daughters all will be affected. Most of them code for something other than female anatomical traits. And so some of the more familiar sex-linked traits are hemophilia, red-green color blindness, congenital night blindness, some high blood pressure genes, Duchenne muscular dystrophy, and also Fragile X syndrome.
Dyskeratosis congenita Hypohidrotic ectodermal dysplasia EDA X-linked ichthyosis X-linked endothelial corneal dystrophy.