In fact, they're getting troublingly little sleep: 65 percent are sleeping an average of just six hours and 27 minutes every night, according to the survey, which was conducted by the hotel company Travelodge.
The nucleus is a membrane-enclosed organelle found in eukaryotic cells. It contains the genetic material of the cell, organized as multiple long linear DNA molecules that coil around to form chromosomes. The transcription of RNA also takes place in the nucleus.
This organelle is surrounded by nuclear membranes, to protect it. The nucleus holds the DNA of the cell. Inside of the nucleus may be an organelle called the nucleolus. This organelle holds the RNA of the cell: it is composed of proteins and nucleic acids.