Hardy Weinberg Lab Analysis

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Updated: Mar 28, 2022
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Category: Biology
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How does migration affect the allele frequency of the dominant allele?

A genetic population can be described as the sum of allelic frequencies of all genes that are represented in the population. This implies that for an evolution of a species to take place a change in the gene frequency has to take place. This can be influenced by some factors like the fitness of organisms, fertility or even the viability of the organisms. When the fitness of an organism is curtailed it means that their movement will be limited which implies that their distribution will be limited. This change will result to a change in the genotypes which will be relayed to the other subsequent generations. In a bid to know better on what influences these change Hardy-Weinberg had an assumption, It assumed that migration changes the gene frequency of an organism by inducing more copies of alleles in the population. The allele that is copied is formerly present in the population and it has being recopied again and introduces change to the population. This allele will be spread through migration of the organism harboring the gene in their genetic makeup.

Migration in this context can be referred to as the movement of an organism from one are to the other and the migration is accompanied by an introduction of new allele in the population through mating. This further implies that it is required for the organisms to mate in order for a genotype to be inherited. Therefore, this can be referred to as the gene flow. The main effects of migration are that it increases the variability within a population of organisms while it on the other hand prevents a population of the species from straying to an extent of becoming a new and separate species from the parent species. The increase in variability within a population is very essential because it provides the population with a variability they require to survive and adapt to their environment accordingly and be able to put within extreme weather conditions and other harsh conditions that are may make them extinct. Migration on the other hand plays the pivotal role of extensively scattering the new allele in the population which later blends with the others stabilizing the similarities between the populations and they evolve with a set reproductive barrier in between the species resulting to specification.

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This is later followed by the natural process of selection that takes place through new forms and development which does not necessarily contribute to the physical fitness of the organisms. Physical fitness is a very huge determinant of the organism’s reproductive advantages this makes it easier for the alleles in the organism’s genotype to express themselves fully in the prevalent alleles. This means that the genotype of the offspring’s will be a little bit different from that of the parents.

Therefore, as evident above migration affects the allele frequency of the dominant allele in a number of ways but it doesn’t really include very great change in some obvious ways like the appearance. This change exemplifies itself genetically and it is carried from one generation to the other. This way the organisms will maintain their generational growth throughout without any danger of becoming extinct. These are the general effects of migration to the allele frequency.

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Hardy Weinberg Lab Analysis. (2019, May 28). Retrieved from https://papersowl.com/examples/hardy-weinberg-lab-analysis/