Encyclopedia > Nucleolus

  Article Content


The nucleolus is an approximately spherical region within the nucleus of eukaryotic cells. It consists of nucleolar organizers[?] and ribosomal subunits. Nucleolar organizers are special regions on some chromosomes that contain multiple copies of the genes encoding for rRNA (ribosomal RNA), which is a functional part of the ribosomes which are involved in protein biosynthesis. Following synthesis, the rRNA is attached to the ribosomal subunits in the nucleus before transport through the nuclear pores into the cytosol.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Grateful Dead

... jams with guitar solos by Garcia, best exemplified by "Dark Star" -- but lacked the energy of the shows and did not sell terribly well. The 1970s live album Live Dea ...

This page was created in 28.8 ms