Editing Ploidy (section)

===Variable or indefinite ploidy===
Depending on growth conditions, [[prokaryote]]s such as [[bacteria]] may have a chromosome copy number of 1 to 4, and that number is commonly fractional, counting portions of the chromosome partly replicated at a given time. This is because under exponential growth conditions the cells are able to replicate their DNA faster than they can divide.{{citation needed|date=May 2023}}

In ciliates, the macronucleus is called '''ampliploid''', because only part of the genome is amplified.<ref>Schaechter, M. ''[https://books.google.com/books?id=DJLIhDnqMk0C&pg=PA217 Eukaryotic microbes]''. Amsterdam, Academic Press, 2012, p. 217.</ref>