Genetic diversity represents the variation of genetic structure within and between biological populations. Each species includes several populations composed of several individuals. Due to mutation, natural selection or other reasons, each population is usually genetically different.
Genes have two characteristics: first, they can faithfully copy themselves to maintain the basic characteristics of living things; Second, genes can "mutate" and mutate in reproduction. When the fertilized egg or the mother is affected by the environment or heredity, the genome of the offspring will have harmful defects or mutations.
Most of them will produce diseases, and in some cases they will be inherited. Also known as genetic disease. Under normal circumstances, life will mutate on the basis of heredity, and these mutations are normal mutations.
Genetic diversity creates biodiversity, that is, there are no same leaves and no same people.
Extended data
Gene expression (gene expression)
It refers to the process of synthesizing functional gene products from genetic information of genes. Gene expression products are usually protein, but the expression products of non-protein coding genes such as transfer RNA(tRNA) or small nuclear RNA(snRNA) are functional RNA.
All known organisms, whether eukaryotes (including multicellular organisms), prokaryotes (bacteria and archaea) or viruses, use gene expression to synthesize living macromolecules.
Gene expression can be regulated by several steps, including transcription, RNA splicing, translation and post-translation modification. Gene regulation gives cells control over structure and function, which is the basis of cell differentiation, morphogenesis and versatility and adaptability of any organism.
Gene regulation can also be used as a substrate for evolutionary change, because controlling the time, location and quantity of gene expression can have a profound impact on the function (function) of genes in cells or multicellular organisms.
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