Which is an example of a genetic drift?

Answer 1

allele frequencies change randomly each generation

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Answer 2

No. But they're involved with one another, and you can't really discuss one without discussing the other as well. Genetic mutation is always introducing new random variation in a population, and natural selection filters this variation. One might say that genetic drift is random variation that is allowed by natural selection.

Answer 3

Probably the best example most people are familar with is the shifting of influenza viruses from year to year. As the influenza virus replicates, mutations accumulate in the genetic material which causes the surface proteins that peoples' immune systems react to to change. Over time (usually within a year in the case of influenza virus) there is enough change that people need a new influenza vaccine to protect them from this year's crop of influenza viruses.

Answer 4

Allele frequencies change randomly each generation

Answer 5

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

Answer 6

A simple example of genetic drift would be how the distribution of alleles changes due to random chance.

Answer 7

allele frequencies change randomly each generation

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Answer 8

the allele frequency of a population changes due to a bottleneck effect - apex

Answer 9

SCIENCE