Birgid Schlindwein's

Hypermedia Glossary Of Genetic Terms

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Prokaryote Cell or organism lacking a membrane-bound, structurally discrete nucleus and other subcellular compartments. Bacteria are prokaryotes. Compare eukaryote. See chromosomes.
Related Terms:
Nucleus The term introduced by Brown (1833) for the more or less spherical structure which occures in cells and stains deeply with basic dyes. The cellular organelle in eukaryotes that contains the genetic material.
Eukaryote Cell or organism with membrane-bound, structurally discrete nucleus and other well-developed subcellular compartments. Eukaryotes include all organisms except viruses, bacteria, and blue-green algae. Compare prokaryote. See chromosomes.
Chromosome The term was proposed by Waldeyer (1888) for the individual threads within a cell nucleus (gk. chroma, colour; soma, body). The self-replicating genetic structures of cells containing the cellular DNA that bears in its nucleotide sequence the linear array of genes. In prokaryotes, chromosomal DNA is circular, and the entire genome is carried on one chromosome. Eukaryotic genomes consist of a number of chromosomes whose DNA is associated with different kinds of proteins.

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Programming: Herbert Maier
Database: Birgid Schlindwein. Please contact me if you encounter any mistakes or if you are missing anything
© Dr. Birgid B. Schlindwein
last update of the database 10/01/2006