In Mendelian inheritance patterns, you receive one version of a gene, called an allele, from each parent. These alleles can be dominant or recessive. Non-Mendelian genetics don’t completely follow ...

For decades, biologists treated DNA as a static string of letters, a linear code that cells read like text on a page. A new ...

All the cells in an organism have the exact same genetic sequence. What differs across cell types is their epigenetics—meticulously placed chemical tags that influence which genes are expressed in ...

Epigenetics plays a critical role in human health by regulating gene expression without the direct modification of DNA sequence. Aberrant epigenetic modifications mediated by changes in DNA and ...

Retinitis pigmentosa (RP) is an eye condition that can be genetic. In this way, people usually need to inherit two copies of a genetic variation that causes RP, one coming from each parent. RP may ...

Cystic fibrosis represents one of the most common inherited genetic disorders affecting people of European descent, touching the lives of approximately 30,000 individuals in the United States alone.

Von Willebrand disease (VWD) is a bleeding disorder in which the blood does not clot as it should. Usually, people have VWD due to their genes, which may come from a male or female parent. Blood ...