The core contains genetic information (DNA molecules), performs the main functions: storage, transmission and sale of hereditary information with protein synthesis. Replication and transcription occur in the nucleus. The formation of both ribosome subunits occurs in the nucleoli. Thus, the cell nucleus is not only a repository of genetic information, but also a place where this material functions and reproduces.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.