Dictionary of Biological Psychology
Large molecules of DNA (deoxyribonucleic acid) contained within a CELL nucleus, which carry the genetic code necessary for the survival and reproduction of the organism.
Bacterial cells have a single chromosome, while in more complex organisms each cell has several chromosomes, which together form the entire genetic code. Chromosomes condense into visible structures during MITOSIS or MEIOSIS (see CELL DIVISION).
See also: chromosome abnormalities
FIONA M.INGLIS
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