Relationship between mutation and Genetic Variation
Genetic Variation is also know as genetic diversity. Mutation is one of the primary sources of genetic variation. Genetic Diversity need mutation for basic mechanisms of evolutionary change to operate.
Meiosis contribution to genetic Variation
In meiosis, chromosomes replicate and then bind to their partner (called their homologue, it carries exactly the same genes). In this big bundle, homologous chromosomes swap pieces of DNA with each other. When the bundles separate, the chromosomes are different to the parental ones and this process of recombination is how genetic diversity is created.
Mitosis does not contribute to genetic variation because it is just the process for replacing body cells. The chromosomes replicate themselves, then one goes to the daughter cell and the other making it having no chance to create variation. Even if a new variant error arises, mitosis does not occur in reproductive cells it cannot be passed on.
Mitosis does not contribute to genetic variation because it is just the process for replacing body cells. The chromosomes replicate themselves, then one goes to the daughter cell and the other making it having no chance to create variation. Even if a new variant error arises, mitosis does not occur in reproductive cells it cannot be passed on.
Gene Flow
Gene flow also known as migration, is the transfer of alleles or gene from one population to another. It is movement of an individuals and/or the genetic material they carry, from one population to another. Migration into or out of a population may be the responsible for the change in allele frequencies, meaning the proportion of members carrying a particular variant of gene.
Gene flow's role in evolution
By moving genetic material around, it can make distant populations genetically similar to one another, which reduces the chance of speciation, the formation of new and distinct species in the coarse of evolution. The less gene flow between two populations, the more likely that two population will evolve into two species