AP BIOLOGY

Detailed explanation-1: -au·to·poly·ploid ˌȯ-tō-ˈpä-lē-ˌplȯid. : an individual or strain whose chromosome complement consists of more than two complete copies of the genome of a single ancestral species. autopolyploid adjective.

Detailed explanation-2: -Polyploid species result through either single species (diploid) genome duplication (autopolyploidy) or the fusion of two or more diploid genomes from different species (allopolyploidy).

Detailed explanation-3: -Polyploid organisms can be classified based on how their chromosome set duplications arose. Autopolyploid organisms have more than two sets of chromosomes that are from the same species, such as the piggyback plant.

Detailed explanation-4: -Types of Polyploidy among Plants An autotetraploid plant has four copies of the same chromosome set. In contrast, an allotetraploid or amphidiploid plant has two diploid sets of chromosomes derived from distinct species. This distinction has important genetic consequences (see GENETICS | Meiosis).