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. In cell biology, the nucleolus (plural nucleoli) is a sub-organelle of the cell nucleus, which itself is an organelle. A main function of the nucleolus is the production and assembly of ribosome components.The nucleolus is roughly spherical, and is surrounded by a layer of condensed chromatin.No membrane separates the nucleolus from the nucleoplasm. Nucleoli are made of protein and ribosomal DNA (rDNA) sequences of chromosomes. main function of the nucleolus is the production and assembly of ribosome components. The nucleolus is roughly spherical, and is surrounded by a layer of condensed chromatin. No membrane separates the nucleolus from the nucleoplasm.