Sentences with phrase «chance mutations»

Eventually, as a result of chance mutations in DNA, accidental modifications subjected to the pressure of natural selection, there emerge the «higher» animals and, at last, man.

Genetic variation was minimal, provided only by chance mutations.

This suggests the ability to taste artificial sweeteners evolved randomly through chance mutations in the sweet receptor.

It reduces to very small proportions, almost negligible, in fact, the importance of the element of chance mutation, on which R. A. Fisher on the one hand and Jacques Monod on the other have reared such super-structures of rather emotional philosophizing.

Specifically, neo-Darwinists claim that natural selection working on chance mutations accounts for what has occurred.

January 7, 2016 Scientists find ancient mutation that contributed to the evolution of multicellular animals A single chance mutation about a billion years ago caused an ancient protein to evolve a new function essential for multicellularity in animals, according to new research co-led by a University of Chicago scientist.

The materialists explain novelty by chance mutations.

Vaccines prevent infection by priming the immune system to create antibodies that effectively block the lock, prompting the virus to reengineer the hemagglutinin key through chance mutation.

This is a kind of risk - free molecular evolution: When multiple copies of a given gene are present in a species» genome, chance mutations in some copies can either ruin the proteins they encode or produce innovative versions; either way, the remaining intact copies still produce the original protein.

The indeterminacy that science has found at the levels of matter (uncertainty), life (chance mutations), and human existence (freedom) are essential cosmological ingredients if the autonomy of the world is not to collapse into the being of the Creator - God (in which case it would no longer be a world distinct unto itself).

The absence of strict determinism that recent physics has discovered at the most basic levels of matter, the chance mutations that biology finds at the level of life's evolution, and the freedom that comes forth with human existence — all of these are the expected features of any world we might claim to be distinct from the being of its creator.

Cancer cells are no exception, and are subject to the two overarching mechanisms described by Charles Darwin: chance mutation and natural selection.

New research shows that the evolution of grape color comes down to chance mutations that first turned black grapes white, then white grapes red.

It developed a chance mutation that made its progeny stick together, eventually giving rise to the first multicellular life.