Ancient viruses are embedded everywhere in the human genome. Estimates range, but it's thought that about eight percent of the human genome could be made up of these ancient retroviruses, which are ...

Charles Darwin bred pigeons, and used them to learn more about the inheritance of different characteristics. For pigeons, beak size is one of those characteristics. There are 350 pigeon breeds or more ...

The concept of epigenetic inheritance has long been controversial. Some researchers hope that new data on cross-generational effects of environmental exposures will help settle the debate. Andrea ...

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 ...

National Eye Institute (NEI) scientists have found that the way the retina metabolizes glucose directly controls which genes get switched on and off in light-sensing photoreceptors. The findings ...