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Genetic diversity (biology definition): the sum of various alleles within a species or a population. Genetic diversity refers to both the vast numbers of different species as well as the diversity within a species.
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 correlated to the span of survival for a species. [1]
Genetic diversity causes differences in the shape of bird beaks, in the flavours of tomatoes, and even in the colour of your hair! Genetic diversity is important because it gives species a better chance of survival.
Genetic diversity is the product of recombination of genetic material in the process of inheritance. It changes with time and space. Sexual reproduction is important in maintaining genetic diversity as it gives unique offspring by combining genes of parents.
Different forms of a gene, which arise through mutations that change DNA sequences, are known as alleles. The gene pool, in turn, consists of the total diversity of genes and alleles in a population or species. The particular mix of genes and alleles in an individual is its genotype.
Genetic diversity refers to all the biological differences that occur within a species. Genetic diversity is a fundamental aspect that allows species to adapt to an environment. It ensures the adaptability, resilience, and survival of many species.
Genetic diversity represents the variation in genetic makeup within a population, species, or entire ecosystem. It is a cornerstone of evolutionary biology and ecology, reflecting the adaptability and resilience of populations to changing environments.
Genetic diversity is a fundamental source of biodiversity which has been defined by different authors as “any measure that quantifies the magnitude of genetic variability within a population” (Hughes et al. 2008) or “the very makeup of the variation of organisms and species on Earth” (Elliott 2002).
In contrast to ecosystem and species diversity, genetic diversity is a measure of the variability among individuals within a single species. Genetic diversity is represented by the variety of alleles present within a population.
Genetic diversity refers to the variety of genes within a population, which is crucial for the adaptability and survival of species. This variation among individuals allows populations to withstand environmental changes, resist diseases, and thrive in different habitats.