| nucleic acid |
Organic substance, found in all living cells, in which the hereditary information is stored and from which it can be transferred. Nucleic acid molecules are long chains that generally occur in combination with proteins. The two chief types are DNA (deoxyribonucleic acid), found mainly in cell nuclei, and RNA (ribonucleic acid), found mostly in cytoplasm.
출처: www.amfar.org/cgi-bin/iowa/bridge.html
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| nucleotide |
A monomeric molecule of RNA and DNA that consists of three distinct parts: a pentose (ribose in RNA, deoxyribose in DNA), a nitrogenous base, and a phosphate group.
출처: www.modernhumanorigins.com/n.html
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| nuclease |
An enzyme that catalyzes the degradation of a nucleic acid by breaking phosphodiester bonds. Nucleases specific for DNA are termed deoxyribonucleases (DNases), and nucleases specific for RNA are termed ribonucleases (RNases).
출처: www.modernhumanorigins.com/n.html
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| nucleoid |
Central region in a bacterial cell in which the chromosome is compacted.
출처: www.modernhumanorigins.com/n.html
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| nucleolus |
An organelle within the eukaryotic nucleus; the site of transcription of the ribosomal RNA genes and assembly of the ribosomal subunits.
출처: www.modernhumanorigins.com/n.html
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