Non-genetic inheritance
From ResearchID.org
The evolutionary Modern synthesis (also called neo-Darwinism) is innately focused on the genetic basis of inheritance. Of primary importance for evolution is the inheritance of modified phenotypes resulting from genetic mutation. Because of the gene-centrism that neo-Darwinian inherently promotes, non-genetic mechanisms have often been over-looked or completely ignored. As biology moves into a PostGenetic mode, more research into non-genetic aspects of the cell continue, and non-genetic mechanisms of inheritance are being discovered.
- "It seems that these hothead-containing plants keep a cryptic copy of everything that was in the previous generation, even though it doesn't show up in the DNA, it's not in the chromosome..."
- "In blatant violation of the laws of genetics—described a century ago by famed monk-scientist Gregor Mendel—they inherit their parents' coloring without inheriting the genes that cause it."
- Non-genetic mechanisms like DNA methylation and regulatory RNA processes can effect the heritability of traits, and can induce specific phenotypic changes that are inherited by progeny.
[edit]
External links
[edit]
