Sentences with phrase «favored by natural selection»

«That's why a lot of East Asians can't metabolize alcohol,» Pritchard said, «but mutations in this pathway must have some additional positive effect that has been favored by natural selection.»

A team of scientists has developed an algorithm that can accurately pinpoint, in large regions of the human genome, mutations favored by natural selection.

Any mutation that offered even a little protection against those pathogens had a chance to be favored by natural selection.

«New algorithm can pinpoint mutations favored by natural selection in large sections of the human genome.»

For instance, the theory of kin selection — helping your relatives so your genes will be reproduced — can be illustrated by a formula called «Hamilton's rule,» which explains when a behavior or trait will be favored by natural selection.

Any prey that can boost its defenses further will, in turn, be favored by natural selection.

Not exact matches

your video (apparently done by some high school kid) is self refuting, it's premise is that — mutations exist in a population, — drastic environmental change dramatically favors one set of mutations — this natural selection is then what results in «rapid change»

3At present, for example, the well - entrenched neo-Darwinian hypothesis of «gradualism» (biological evolution occurs slowly, and more or less continuously as the constant interplay of random variations and natural selection over vast periods of time) is confronted with a somewhat more radical and neo-Lamarckian theory of «punctuated equilibrium» favored by Harvard biologists Stephen Jay Gould and Peter Williamson, collaborated by fossil discoveries of paleontologist and cultural anthropologist Richard Leakey in Africa.

The dominant theory of evolution (often called neo-Darwinism) holds that new species arise through the gradual accumulation of random mutations, which are either favored or weeded out by natural selection.

Acquired - characteristic inheritance is known as Lamarckism, after French biologist Jean - Baptiste de Monet de Lamarck, who proposed the idea in 1809, and is today almost universally rejected in favor of evolution by natural selection of random genetic mutations.

By favoring more tolerant, less antagonistic individuals, natural selection reshaped both our behavior and our appearance.

-- Moyzis and Wang theorize that natural selection probably favored different abilities and dispositions as modern groups adapted to the increasingly complex social order ushered in by the first human settlements.

At one point, he explained that so many more babies survive childbirth now that natural selection, as proposed by Charles Darwin, can not act on humans to favor infants with traits that are beneficial today or to weed out those with adaptations that impair survival.