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torisob [31]
4 years ago
15

What is the effect of genetic drift in which a population size is reduced drastically for a short period of time, causing a long

term reduction in genetic variation for that population
Biology
1 answer:
masha68 [24]4 years ago
6 0

Explanation:

Genetic drift has a significant effect on small populations. Here, mutations accumulate in a population over time, altering the frequency of alleles or different forms of a gene. Natural selection can lead to a loss of variation in a population- referred to as genetic drift; the allelic frequency of one trait increases while others become less common. These variations typically occur due to mutation and recombination events.

∴Some variants or alleles can be lost from the population, becoming extinct.

Further Explanation:

During the process of cell division, spontaneous changes within the genome can arise, called mutations. These are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes.

These mutations form variants which become stable within a population, leading to the formation of separate, genetically distinct populations called species.

  • mutations accumulate in a population over time, altering the frequency of alleles or different forms of a gene- this is called genetic drift.

Other phenomena further compound genetic drift...

  • In the founder effect, the separation of a group from a larger group can decrease genetic diversity, this can create a genetically distinct population
  • in the bottleneck effect, a population die off or a barrier to reproduction increases the genetic drift in the population

Learn more about mutations at brainly.com/question/4602376

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

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