22-Mar-04 12:00 PM CST
GENOME: The Secret of How Life Works GLOSSARY
allele: one of two or more versions of a gene from the same chromosome
bases: four main chemical ingredients of DNA
biotechnology: scientific transfer of beneficial genetic traits from one species to another to enhance or protect an organism
cell: the basic unit of all living things
cell membrane: a thin layer surrounding the cell that regulates materials entering and leaving the cell
chromosome: one of the bodies of a cell nucleus that contains the genes
clone: individual organism grown from a single body cell of its parent and that is genetically identical to its parent
DNA: acronym for deoxyribonucleic acid; DNA is a code within cells to form proteins
double helix: the structure of DNA; a name for the characteristic shape of the two spiraling strands of complementary DNA
enzyme: a protein that speeds up chemical reactions in the body without itself being permanently altered
gene: a hereditary unit composed of a sequence of DNA
gene therapy: the introduction of a gene into a cell for the purpose of correcting a hereditary disease
genome: all the DNA in an organism or a cell
mutation: a permanent structural alteration in DNA
nucleus: part of the cell that contains chromosomes and hereditary information, and controls the cell's growth and reproduction
protein: a large complex molecule made up of one or more chains of amino acids
RNA: a chemical similar to a single strand of DNA
ribosome: the protein factory; the site of protein synthesis
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For additional information on this Genome article, please contact:
Mike Kempf
(210) 599-0045
Source: Evergreen Exhibitions
http://www.evergreenexhibitions.com
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