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Genetic blank is a fact that a biological system – individual and population – is different over space. It is the base of the Genetic variability of different biological systems in space. Genetic variation is based on the variation in blank of genes in a gene blank. It occurs both within and among populations, supported by individual carriers of the variant genes. Genetic variation is brought about by blank mutation, which is a permanent change in the blank structure of a gene.
answers:
variation
random
chemical
pool
alleles