Genetic variation is a fundamental change it can be natural, or a mutation in the genetic makeup of an organism. Genetic variation is a gene change or variation in protein-coding information of DNA.
Gene variation can happen through random fertilisation, random mating between organisms, mutation, and gene migration. Genetic variation is beneficial sometimes it helps the new generations to adapt according to changes in the environment.
Genetic variation happens normally by natural method, diversifying or disruptive selection tends to increase the genetic variation in a population. Diversifying is the selection in which average phenotypes are less fit and extreme phenotype features are prominently shown in the population. The diversifying selection is seen in all organisms, humans, birds, aquatic life, and plants.
How are cancer cells different from normal cells?
The diversifying selection is seen in animals like monkeys, as a group of monkeys there is an alpha monkey that has the power to fertile maximum female monkeys, as there are medium monkeys also in the group but they cannot fertile females in the presence of an alpha male, as a result, the maximum population of new offspring is of the alpha male, in this the genes of the alpha male are there in maximum new offspring.
We can understand by hypothetical example as two incomplete dominant features determine the colour of a rat, we have a white colour rat who has genotype ”b” and a black colour rat who has genotype ”B”. Let’s say there are a lot of rats population living in an area both white and black.
What are the Most Deadly Mental Illnesses?
The white rat has the genotype ”bb”.
The black rat has the genotype ”BB”.
when there is a mix of genotypes during reproduction the rat having ”bb” have white colour, the rat having genotype ”BB” have black colour and the rat having genotype ”Bb” have gray colour.
If the group of rats lived in an area having black and white rocks then it would be easy for black and white rats to hide from predators and the grey colour rat easily be seen by predators and be more vulnerable to predators. This diversifying selection helps the black and white rats to increase their population and reproduce.
Chlamydia: Causes, Symptoms, Diagnosis, Treatment
Diversifying or disruptive selection has the potential to generate a high level of variation in a population that can lead to the evolution of a new species, we can say this natural selection process can alter genetic makeup throughout a long duration and tend to increase genetic variation and can refer to evolution.
