Genetic diversity

Genic diversity or Genetic diversity (pronunciation: /dʒɪˈnɛtɪk daɪˈvɜːrsɪti/) refers to the total number of genetic characteristics in the genetic makeup of a species. It is distinguished from genetic variability, which describes the tendency of genetic characteristics to vary.

Etymology

The term "Genetic diversity" is derived from the English words "genetic" and "diversity". The word "genetic" comes from the Greek word "genetikos" meaning "genitive" and the word "diversity" comes from the Latin word "diversitas" meaning "difference".

Definition

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.

Importance

The conservation of genetic diversity is often considered a prerequisite for long-term biodiversity sustainability. Genetic diversity in a population can be important for its survival, as genetic diversity is related to a population's ability to adapt to change.

Related terms

Allele: One of two or more versions of a gene that are found at the same place on a chromosome.
Biodiversity: The variety of life in the world or in a particular habitat or ecosystem.
Conservation (ethic): Ethic of resource use, allocation, and protection.
Genetic variability: The tendency of genetic characteristics to vary.

External links

Medical encyclopedia article on Genetic diversity
Wikipedia's article - Genetic diversity

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Genetic diversity