Cell Nucleus
| Definition: |
Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed) |
| Notes: |
A 11 qualif except /cytol; /genet permitted |
Cell Nucleus Categories.
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Cell Nucleus Structures - Structures that are part of or contained in the CELL NUCLEUS. |
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Micronuclei - Nuclei, separate from and additional to the main nucleus of a cell, produced during the telophase of mitosis or meiosis by lagging chromosomes or chromosome fragments derived from spontaneous or experimentally induced chromosomal structural changes. This concept also includes the smaller, reproductive nuclei found in multinucleate protozoans. |
Cell Nucleus Definitions and Terms
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