- the smaller of the two types of nuclei occurring in ciliate protozoans.
Origin of micronucleus
Examples from the Web for micronucleus
Historical Examples of micronucleus
In the latter case it is often called the paranucleus or micronucleus.A Guide for the Study of Animals
The macronucleus is spherical and has one micronucleus attached.
Both the small nucleus (micronucleus) and the large nucleus (macronucleus) divide at each division of the body.A Critique of the Theory of Evolution
Thomas Hunt Morgan
The macronucleus is usually dorsal, elliptical, and cleft, with one micronucleus attached.
The macronucleus is central, spherical in form, and bears a single minute micronucleus.
- the smaller of two nuclei in ciliated protozoans, involved in reproductionCompare macronucleus
- A minute nucleus.
- The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.