micronucleus
Protozoan's reproductive genome
A micronucleus is the smaller of two nuclei in certain single-celled organisms, particularly ciliates like paramecia.
While the larger macronucleus handles day-to-day cell functions, the micronucleus contains genetic material used during sexual reproduction.
In toxicology, micronuclei are small nuclear fragments in cells that indicate chromosomal damage—the micronucleus test screens chemicals for genotoxicity.
DNA strand carrying genes
- aberrationDeviation from the norm
- erythrocyteOxygen-transporting blood component
- DNA damageInjury to genetic material
- bone marrowBlood cell birthplace
centromere · spindle · rodent · biomarker · cytogenetic · polychromatic · in vivo · frequency
Ciliated freshwater protozoan genus
- conjugationVerb form variation system
- macronucleusLarger nucleus controlling metabolism
- germlineHereditary cellular lineage
- meiosisGamete-producing cell division
polyploid · transcription · vegetative · ciliary · diploid · chromatin · sexual reproduction
Gel surrounding the nucleus
- mitosisNuclear division producing identical cells
- cell divisionParent splitting into offspring
- anaphaseChromatid separation stage
- expelledOfficially removed or banished
daughter cell · budding · extranuclear · interphase · centrosome · karyotype
chromosome
DNA strand carrying genes
- aberrationDeviation from the norm
- erythrocyteOxygen-transporting blood component
- DNA damageInjury to genetic material
bone marrow · centromere · spindle · rodent · biomarker · cytogenetic · polychromatic · in vivo · frequency · scoring
Paramecium
Ciliated freshwater protozoan genus
- conjugationVerb form variation system
- macronucleusLarger nucleus controlling metabolism
- germlineHereditary cellular lineage
meiosis · polyploid · transcription · vegetative · ciliary · diploid · chromatin · sexual reproduction
cytoplasm
Gel surrounding the nucleus
- mitosisNuclear division producing identical cells
- cell divisionParent splitting into offspring
- anaphaseChromatid separation stage
expelled · daughter cell · budding · extranuclear · interphase · centrosome · karyotype
nuclear, nucleus, microscope, micro, microbiology, nucleic, nucleate, nucleation, nuclei