Explain the terms: Gene pool and Gene frequency, Genetic drift

Explain the terms: gene pool and gene frequency.

Gene Pool: The sum of the genes of all individuals in the Mendelian population that are interconnected among itself is called as gene pool.

  1. Changes in gene groups result Development With every birth and death Being in the Mendelian population changes the gene group.
  2. The migration of individuals that cause gene flow can also alter gene pool.

Gene Frequency: The ratio of an allele to a group of genes as compared to other alleles in the same position is called the frequency of genes.

  1. Useful genes that produce more Adaptive phenotypes usually have higher gene frequencies than genes that cause adverse effects.
  2. Non-adaptive gene populations have low gene frequency. Changes in gene frequency cause growth.

Genetic drift : Genetic drift is the change in the frequency of alleles in natural populations caused by pure current.

  1. Genetic drift is one of the growing forces in small populations.
  2. Examples of genetic drift are observed when a particular allele is removed from the population due to events such as accidental death before mating of an organism.
  3. Specifically, if the sole owner of the allele is removed from the population, a genetic shift occurs.
  4. Small populations are more likely to have a genetic mutation.
  5. The genetic shift is also called the Seawall Wright Effect.

Genetic variation : The variation is raw development material. It is caused by changes in genes and gene frequencies. The reasons for the population fluctuation are the following:

i) Gene mutation: It is a change in The chemical combination of genes that introduces variants into the gene group and explains changes in the frequency of genes.

ii Gene flow: transfer of genes between populations that are genetically different from each other, changes in gene frequency.

iii) Genetic recombination: During Gametes exchange genetic material between homogeneous Chromosome with a transit process Over creates new combinations that are responsible for variants called genetic recombination.

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