BSC 300 Chapter Notes - Chapter 1: Nuclear Dna, Peptide, Gastrulation
19 Apr 2018
School
Department
Course
Professor
Document Summary
In eukaryotic cells, the initial rna product is processed into a smaller messenger rna (mrna) molecule, which moves out of the nucleus to the cytoplasm, the region of the cell outside of the nucleus. Intermediate-filament proteins called lamins form a two-dimensional network, called the nuclear lamina, along the inner surface of the inner membrane, giving it shape and rigidity: the breakdown of the lamina occurs early in cell division. Inside the nucleus one can often see a dense subcompartment, termed the nucleolus, where ribosomal rna is synthesized and ribosomes are assembled: the total dna in an organism is referred to as its genome. In most prokaryotic cells, most or all of the genetic information resides in a single circular. Some unicellular eukaryotes cause major human diseases and are widely studied in an attempt to develop drugs that will kill them but not injure their human host.
