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.
- Changes in gene groups result Development With every birth and death Being in the Mendelian population changes the gene group.
- 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.
- Useful genes that produce more Adaptive phenotypes usually have higher gene frequencies than genes that cause adverse effects.
- 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.
- Genetic drift is one of the growing forces in small populations.
- 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.
- Specifically, if the sole owner of the allele is removed from the population, a genetic shift occurs.
- Small populations are more likely to have a genetic mutation.
- 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.