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Nucleic acid: One of the family of large molecules which includes deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Nucleic acids were so named because they were first found in the nucleus of cells, but they have since been discovered also to exist outside the nucleus. The two chief types of nucleic acids are, indeed:
History: In 1869 Friedrich Miescher developed ways of isolating intact nuclei from cells and analyzing their chemical content. From the nuclei he extracted substances rich in phosphorus and nitrogen. They came to be known as "nucleic acids." Miescher predicted that they would someday be considered as important as proteins. The substances turned out to be deoxyribonucleic acid (DNA) which was found by Avery, MacLeod and McCarty in 1944 to be the genetic material. They proved this clearly by using bacterial DNA to change (transform) the genetic material of other bacteria.
Library > Literature & Language > Dictionary ( nÅ«-klÄ“ ' Äk, -klÄ ' -, nyÅ«- ) n. Any of a group of complex compounds found in all living cells and viruses ...
Nucleic acids are biological molecules essential for life, and include DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Together with protein
A nucleic acid is a polymer comprising numerous nucleotides (each composed of a phosphate unit, a sugar unit, and a "base" unit) linked recursively through the sugar and ...
Nucleic Acids:DNA and RNA - This lesson is an introduction to the structure and function of DNA including the process of DNA replication.
A method of amplifying one or more target nucleic acid sequence(s) in a PCR buffer solution comprising one or more target nucleic acid sequence(s), a nucleic acid ...