What are mutations. What mutations are distinguished by the nature of changes in the genotype of the organism? What is polyploidy?

A mutation (lat. Mutatio – change) is a persistent (that is, one that can be inherited by the descendants of a given cell or organism) genome change.
Gene, chromosomal, genomic.
Polyplodia is a hereditary change that is characteristic mainly for plants – an increase in the number of chromosomes in future generations.

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