Definition of lackey - a servant, especially a liveried footman or manservant, a brownish European moth of woods and hedgerows, the caterpillars of which Definition of lackey - a servant, especially a liveried footman or manservant, a brownish European moth of woods and hedgerows, the caterpillars of which
The nucleolus is the nuclear subdomain that assembles ribosomal subunits in eukaryotic cells. The nucleolar organiser regions of chromosomes, which contain the genes for preâribosomal ribonucleic acid (rRNA), serve as the foundation for nucleolar structure.
Nucleolus Function. The nucleolus is one of the most important organelles of eukaryotic cells. Its main function is producing and assembling subunits which form ribosomes. Different functions performed by the nucleolus are listed in the article.he chains of RNA and DNA are the structural components of nucleolus. It is composed of granular and fibrillar components. The fibrillar components are categorized into fibrillar centers and dense fibrillar component. This type of structural organization of nucleolus is found in eukaryotic cells.