To anyone with a basic understanding of evolution, it should seem puzzling that deadly genetic diseases, passed on from one generation to the next, haven’t eradicated themselves by now. Having one ...

How do populations go from one genotype to another genotype if the intermediate phenotypes have lower fitness? The evolutionary forces that explain this make up the shifting balance theory. When ...

Early evolutionists believed that the genetic basis of adaptation was micromutational. This view was supported by Ronald Fisher's classical mathematical analysis (of 1930) of his 'geometric model' of ...

The late, famed evolutionary biologist Ernst Mayr's theory of genetic revolution , introduced in 1954, remains controversial to this day and has many detractors. Mayr believed that genes interacted ...

This is a preview. Log in through your library . Abstract Confronted with variable environments, species adapt in several ways, including genetic differentiation, a jack-of-all-trades strategy, or ...

Age may not be rust after all. Specific genetic instructions drive aging in worms. This discovery contradicts the prevailing theory that aging is a buildup of tissue damage akin to rust, and implies ...

The new study proposes a mathematical mechanism by which simultaneous waves of acetylcholine and dopamine arise, which may represent how this balance is realized. The research was conducted using ...

It's time for researchers to reconsider the current paradigm of cancer as a genetic disease, argues Sui Huang from the ...

The debate over COVID-19's origin is focused on two theories, that humans were first infected by a wild animal or that the virus leaked from a lab. Scientists say the natural transmission theory has ...