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THE NUCLEIC ACIDS © 2007 Paul Billiet ODWSODWS. Friedrich Miescher in 1869 isolated what he called nuclein from the nuclei of pus cells Nuclein was shown.

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Presentation on theme: "THE NUCLEIC ACIDS © 2007 Paul Billiet ODWSODWS. Friedrich Miescher in 1869 isolated what he called nuclein from the nuclei of pus cells Nuclein was shown."— Presentation transcript:

1 THE NUCLEIC ACIDS © 2007 Paul Billiet ODWSODWS

2 Friedrich Miescher in 1869 isolated what he called nuclein from the nuclei of pus cells Nuclein was shown to have acidic properties, hence it became called nucleic acid © 2007 Paul Billiet ODWSODWS

3 Two types of nucleic acid are found Deoxyribonucleic acid (DNA) Ribonucleic acid (RNA) © 2007 Paul Billiet ODWSODWS

4 NUCLEIC ACID STRUCTURE Nucleic acids are polynucleotides Their building blocks are nucleotides © 2007 Paul Billiet ODWSODWS

5 NUCLEOTIDE STRUCTURE PHOSPATESUGAR Ribose or Deoxyribose NUCLEOTIDE NITROGENOUS BASE Adenine (A) Guanine(G) Cytocine (C) Thymine (T) Uracil (U) © 2007 Paul Billiet ODWSODWS

6 The Double Helix (1953) © Dr Kalju Kahn USBC Chemistry and Biochemistry Public Domain image

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