NUCLEOLOLUS Meaning and
Definition
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The nucleolus is a distinct substructure found within the nucleus of eukaryotic cells. It is composed of proteins and ribonucleic acid (RNA) molecules and is involved in the production and assembly of ribosomes, the cellular machinery responsible for protein synthesis.
The nucleolus is typically spherical in shape and located within the nucleus. It is not surrounded by a membrane, and its size and number can vary depending on the cell type and its function. The nucleolus can be observed during interphase (the resting phase of the cell cycle) when the nucleus is not dividing.
The main function of the nucleolus is to manufacture and assemble ribosomal subunits. It serves as a site for transcription, where ribosomal RNA (rRNA) genes are transcribed to produce precursor rRNA molecules. These molecules are then processed and modified to form mature rRNA, which combines with proteins to form the two subunits of the ribosome.
Additionally, the nucleolus plays a role in regulating cell growth and proliferation. It contains proteins and enzymes involved in cell cycle control and stress response pathways. The nucleolus also functions as a storage site for certain proteins and may participate in other cellular processes such as DNA repair.
Overall, the nucleolus is a crucial organelle within the nucleus that is responsible for the production and assembly of ribosomes, essential for protein synthesis, and also contributes to various other cellular functions.
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Nucleolinus, nucleolonucleus, the nucleus of a nucleolus, a minute point in the germinal spot of an ovum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for NUCLEOLOLUS
- nucleoolus
- bucleololus
- mucleololus
- jucleololus
- hucleololus
- nycleololus
- nhcleololus
- njcleololus
- nicleololus
- n8cleololus
- n7cleololus
- nuxleololus
- nuvleololus
- nufleololus
- nudleololus
- nuckeololus
- nucpeololus
- nucoeololus
- nuclwololus
- nuclsololus
Etymology of NUCLEOLOLUS
The word "nucleolus" is derived from the Latin word "nucleus", which means "kernel" or "core". In turn, "nucleus" comes from the Latin word "nux", meaning "nut". The suffix "-olus" in "nucleolus" indicates a diminutive form, implying a small or little nucleus. Thus, the term "nucleolus" refers to the small structure found within the nucleus of a cell.
