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.
1 The nucleus contains the cell's DNA and directs the synthesis of ribosomes and proteins. 2  Found within the nucleoplasm, the nucleolus is a condensed region of chromatin where ribosome synthesis occurs.  Chromatin consists of DNA wrapped around histone proteins and is stored within the nucleoplasm.