Sentence examples for variation on which from inspiring English sources

Low levels of gene flow from one species to another increased genetic variation on which selection acted.

Chance (probability) is relevant to natural selection only in relation to the production of the genetic variation on which natural selection depends.

Structures exhibiting greater diversity have been able to produce more variation on which selection can act and can be described as being more evolvable.

We did not find this outcome surprising, however, because (i) we expect to find genetic variation on which selection and genetic drift can act in a rapidly evolving population, and (ii) we previously found variation between isolates collected in different regions of Vietnam [10].

By reshuffling genomes, structural genomic reorganizations provide genetic variation on which natural selection can work.

Thus, epigenetics appears to provide a molecular mechanism that can increase phenotypic variation on which selection acts (Skinner 2011).

Darwin had not really explained evolution at all, Butler reasoned, because he had not accounted for the variations on which natural selection worked.

The most serious difficulty facing Darwin's evolutionary theory was the lack of an adequate theory of inheritance that would account for the preservation through the generations of the variations on which natural selection was supposed to act.

Hence, the previous construction allows a (local) unified proof of the twistor correspondence between Jacobi fields and twistor vector fields that are tangent to variations on which are simultaneously and -holomorphic (infinitesimal horizontal holomorphic deformations in [5]).

The lack of knowledge concerning the mechanism behind the variations on which natural selection acted, as a particularly dramatic example, led Darwin to various speculations during the several editions of the book, most of which strike the modern reader as both forced and disappointing.

Sunflower, rape, soybean and palm oils are the main substrates to make biodiesel worldwide, however, there are local variations on which is the main source.