Oxytricha trifallax

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Oxytricha trifallax
Oxytricha trifallax.jpg
Oxytricha trifallax
Scientific classification
Domain: Eukaryota
(unranked): Alveolata
Phylum: Ciliophora
Class: Spirotrichea
Subclass: Stichotrichia
Order: Sporadotrichida
Family: Oxytrichidae
Genus: Oxytricha
Species: O. trifallax
Binomial name
Oxytricha trifallax
Stein, 1859

Oxytricha trifallax is a ciliate protozoan species in the genus Oxytricha.

O. trifallax is notable for having as many as 16,000 chromosomes.[1] For comparison, humans have 46 chromosomes, consisting of 23 pairs.


  1. ^ The Oxytricha trifallax Macronuclear Genome: A Complex Eukaryotic Genome with 16,000 Tiny Chromosomes.

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