Sentence examples for maintain variation from inspiring English sources

In natural populations, micro-heterogeneity of habitats can maintain variation at small scales, while variation among environmentally diverse but locally homogenous sites can drive population differentiation and local adaptation7.

Novel strategies, such as the design of transgenic mosquitoes refractory to Plasmodium, or design of human vaccines emulating mosquito resistance to the parasite, require extensive knowledge of processes involved in immune responses and of microevolutionary mechanisms that create and maintain variation in immune responses in wild vector populations.

We maintain variation via crossover, mutation, and the creation type ramped half and half.

The mutation is used to provide random changes in the solutions to maintain variation in the selection of solutions and prevent convergence.

Conversely, neutral variants located far away from the advantageous mutation do not hitchhike because recombination can break apart the association and therefore maintain variation.

The lack of a heredity mechanism was one of the greatest shortcomings for the Origin, one that would not be overcome for 70 years until the discovery of genetics and understanding of sources of hereditary variation and mechanisms that maintain variation within populations (Provine 1971).

It is possible that TRs in human and N. vectensis differ in their tendency to accumulate and maintain variations.

Of the processes capable of maintaining variation, negative frequency-dependent selection (where rare types are favoured by selection) is the most powerful, at least in theory1; however, few experimental studies have confirmed that this process operates in nature.

After describing the cost-benefit tradeoffs that may have maintained variation in extraversion over human evolution, we consider the evidence bearing on multiple distinct evolutionary hypotheses regarding the causal underpinnings of such variation.

Although we aim to select individual plants from each F2-derived lineage for development of pure-line recombinant inbred lines, our focus to date has been to screen multiple individuals per F2-derived lineage, which has the advantage of maintaining variation.

Students observe that most flies have red eyes, and these red-eyed flies have lost variation at the near marker but maintained variation at the far marker hence observing a "selective sweep" and the "hitchhiking" of a nearby neutral variant.