Macronucleus
From Freepedia
A macronucleus (formerly also meganucleus) is the larger type of nucleus in ciliates. Macronuclei are polyploid and undergo direct division without mitosis. It controls the non-reproductive cell functions such as metabolism. During conjugation, the macronucleus disingtegrates, and a new macronucleus is formed by karyogamy of the micronuclei.
| This protist-related article is a stub. You can help Wikipedia by expanding it. |
