Does the natural selection act on the genotype or phenotype of an organism?

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Answer:

both. Mainly, natural selection act on genotype. Phenotype is given by genotype, by 95% lets say.

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Answer:

This seems to be an odd question to ask... Unless I'm mistaken, the phenotype of a given organism is...

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Answer:

Depending on the trait, there may be more than one genotype for a phenotype, meaning both homozygous...

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Answer:

It does. Hence evolution being a shift in the allelic ratios over time.

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Answer:

The phenotype is the result of actively expressed genes and their regulation.

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Answer:

Because the phenotype is the portion of the genetic code available for natural selection to work on...

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Answer:

It doesn't. Phenotypes are viable or not in a given environment, and this influences whether the corresponding...

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Answer:

Natural selection acts solely on phenotype. However, the probability of certain genotypes can be affected...

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Answer:

The phenotype is the object of natural selection. Sounds like some fun homework!

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If the genes are carried by the individual (i.e. in his genotype) but are not expressed, they confer...

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