Overview

polyploidy


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The condition in which an individual possesses one or more sets of homologous chromosomes in excess of the normal two sets found in diploid organisms. It is caused by the replication within a nucleus of complete chromosome sets without subsequent nuclear division. Examples are triploidy (3n), tetraploidy (4n), hexaploidy (6n), and octoploidy (8n).

Subjects: Genetics and Genomics.


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