A special case of natural selection is sexual selection, referring to selection on any characters that influence an organism's access to mating partners. Besides resulting in morphological, physiological, or behavioral traits that allow individuals to succeed in competitive interactions, natural selection...
Natural selection has a formal definition as the natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment, leading to the perpetuation of those genetic qualities best suited to that organism's environmental niche. Within conventiona...
The meaning of NATURAL SELECTION is a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular
See All Rhymes for natural science Browse Nearby Words natural rubber natural science natural selection See all Nearby Words Cite this Entry Style “Natural science.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/natural%20science. Accessed 26 Apr...
Nature grants long periods of time for the work ofnatural selection. 自然界允许极长的时期,给自然选择来进行它的工作. 辞典例句 Natural SelectionProtected Some Asian Populations From Alcoholism, Study Suggests. Science Daily. Alcohol Reports.
Demographic processes should affect all loci in a similar way, whereas the effects of selection should be restricted to specific loci. Selection might have been more important in shaping patterns of variation in the genome than was previously anticipated, although the relative importance of background...
in genetic diversity during long-term mass rearing. However, compared to the putatively neutral synonymous sites, those functionally important sites (such as nonsynonymous sites) in wild populations are likely to be preserved by natural selection. We demonstrate that natural selection maintains the gene...
We can use birth control, so that those of who are "fittest" in terms of natural selection might not pass on our genes at all. We use medicine and science to allow many people to live (andreproduce) who otherwise wouldn't likely survive past childhood. Much like domesticated animals, whi...
In subject area: Biochemistry, Genetics and Molecular Biology Selection is a directional process by which the fittest genotypes in a given environment increase their frequency in the population (positive selection), whereas less fit genotypes decrease their frequency (negative or purifying selecti...
Innatural selection Gene frequencies tend to remain constant from generation to generation when disturbing factors are not present. Factors that disturb the natural equilibrium of gene frequencies include mutation, migration (or gene flow), random genetic drift, and natural selection. A mutation is a...