Hubble is an ancient Anglo-Saxon name that is derived from the Old French name Hubaut or one of the Old German names Hugibald or Hubald. These names have the literal meaning of mind-bold. CITATION[CLOSE] Reaney, P.H and R.M. Wilson, A Dictionary of English Surnames.
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel or seed) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others have many.
The Nucleus. The largest and most clearly visible of the cell's constituents is the nucleus. Within the nucleus, DNA molecules, the cell's genetic machinery, are stored, repaired, transcribed and eventually replicated. Around the outside of the nucleus is an envelope consisting of two layers of membrane.