Science, Art, Litt, Science based Art & Science Communication

Difference between Genetic Variation and genetic Diversity

Q: What is the difference between Genetic Variation and Genetic Diversity?

Krishna:

Genetic variation is the difference in DNA among individuals or the differences between populations. Briefly genetic diversity is the diversity within a given species or a given sub-population of a species.

Genetic variation can be identified at many levels. Identifying genetic variation is possible from observations of phenotypic variation in either quantitative traits [traits that vary continuously and are coded for by many genes (e.g., beak length in birds)] or discrete traits [traits that fall into discrete categories and are coded for by one or a few genes (e.g., petal colour in certain flowers like white, red or pink)].

Genetic variation

Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary.

Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele. The population will continue for more generations because of the success of these individuals.

Genetic diversity

Genetic variation deals with individuals of a particular species, whereas genetic diversity could be related to either one or more species. Genetic variation mainly takes place due to sexual reproduction and mutations, while genetic diversity becomes important for the demands of nature.

Genetic variation provides the raw materials for natural selection while genetic diversity is the baseline of biodiversity. Genetic diversity can be measured by counting the number of different genes in a gene pool, but genetic variation can only be expected to occur and cannot be measured.

Difference between Genetic Variation and genetic Diversity

Replies to This Discussion

Badge

Birthdays

Birthdays Today

Birthdays Tomorrow