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 ...

These resources provide an overview to how the basic principles of inheritance were studied and elucidated by Gregor Mendel. Basic linkage analysis is also described to serve as a foundation for more ...

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 ...

Although schwannomatosis is a genetic condition, the inheritance patterns for this disorder are complex and much less clear than for both NF1 and NF2. Some cases of schwannomatosis are familial, with ...

IN 1865, an Austrian monk called Gregor Mendel, working to understand hybridisation, uncovered exquisitely simple and reliable patterns of inheritance in varieties of garden pea. In 1900, the patterns ...

The year was 1900. Three European botanists — one Dutch, one German and one Austrian — all reported results from breeding experiments in plants. Each claimed that they had independently discovered ...

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 ...

Research on Tourette’s indicates that the condition is strongly influenced by inherited genetic factors, with environmental factors also contributing to its development. Tourette syndrome is a ...

Genetic anticipation is an unusual type of genetic inheritance in which there is a progressive increase in the severity of a mutation, and sometimes in the probability that a given mutation will ...