Mitosis
Mitosis, or cell division, was the process by which a eukaryotic  separated the chromosomes in its cell nucleus into two identical sets. Telomeres grew shorter when cells divided, allowing the age of a person at the time of cell extraction to be determined. ()

A magnetic organism encountered by the  in 2269 was able to reproduce itself by mitosis and take over the control systems of starships, computer centers, even planets. ()

In 2369, Dr. Beverly Crusher asked Amanda Rogers to record the rate of mitosis in live bacilli samples. Rogers artificially inflated the process using her  powers, rendering the experiment useless. ()

Later that year, embryonic quantum singularity lifeforms were discovered in a state of mitosis in the engine core of a Romulan warbird. ()

According to Doctor Beverly Crusher in 2364, cell division in single-celled lifeforms, at least organic ones, was preceded by a resting state. ()

By 2371, Sulan had developed a procedure to stimulate cell division as a kind of enhanced mitosis. ()

Also that year, Julian Bashir discovered that a Jem'Hadar youth's cellular mitosis had been artificially enhanced. ()

In 2372, when hyper-evolution caused Tom Paris' cells to undergo mitosis, The Doctor used a bio-suppressor field to inhibit the process. ()

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Biology