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Yes, traits that are phenotypical in nature and confer some survival and reproductive advantage, then the alleles that gave rise to these traits become more frequent in the populations gene pool and evolution takes place.
So, natural selection is acting on genes in the individuals and population are evolving from this process.
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∙ 11y ago
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Is inheritance a requirement for natural selection?
Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.
Why are vestigial structures not removed by natural selection?
Nature selects against only harmful traits
What do variation and competition have to do with natural selection?
Variation and competition are the basis of natural selection.When a population of organisms has variety (big/small, fast/slower, etc), and there is competition, then some of those traits will assist in winning the competition, and some will not, which will tend to mean the difference between an organism surviving versus not surviving, which in a large population will mean passing the genes for those advantageous traits on, which then means that those traits have been 'selected' for by the natural act of competition, thus 'natural selection'.
Is it true natural selection can act upon an individuals genotype the external of genes?
False
Will natural selection act on tongue rolling in a human population?
No because theres no selective advantage
Is inheritance a requirement for natural selection?
Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.
Can natural selection act on a population with no variation traits?
The trait is the same for all organisms.
What does natural selection only act on?
It acts on populations.
Does natural selection act on genotypes?
Indirectly, yes it does. But it can only act on genotypes through their phenotypes.
Natural selection can only act upon a certain trait if the trait is?
heritable
Why are vestigial structures not removed by natural selection?
Nature selects against only harmful traits
List the three conditions that are necessary and sufficient for natural selection to act on a?
A beneficial mutation leading to variability in a population and the heritability of those beneficial traits.
What type of traits does natural selction act on?
Heritable traits that confer some survival or reproductive advantage, or natural selection will cull traits that confer the opposite to survival and reproductive advantage. So, the individual organisms, or his genes, are selected and these alleles increase in frequency in populations and evolution takes place.
Does natural selection act on the phenotype?
yes
What do variation and competition have to do with natural selection?
Variation and competition are the basis of natural selection.When a population of organisms has variety (big/small, fast/slower, etc), and there is competition, then some of those traits will assist in winning the competition, and some will not, which will tend to mean the difference between an organism surviving versus not surviving, which in a large population will mean passing the genes for those advantageous traits on, which then means that those traits have been 'selected' for by the natural act of competition, thus 'natural selection'.
Why does the environment act on natural selection?
I know of no government that acts, in any direct or significant way, on natural selection.
Can natural selection act upon body shape?
Yes, that would be called the Homologous structure, and that changes in natural selection.
