Chapter 5 part 4_F10 - Nucleic Acids Chapter 5 (Pages 86...

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Nucleic Acids Chapter 5 (Pages 86 – 89)
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There are two type of nucleic acids Deoxyribonucleic acid (DNA) Ribonucleic acid (RNA)
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1 2 3 Synthesis of mRNA in the nucleus Movement of mRNA into cytoplasm via nuclear pore Synthesis of protein NUCLEUS CYTOPLASM DNA mRNA Ribosome Amino acids Polypeptide mRNA
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The chemical composition The chemical composition of DNA of DNA polymer polymer , made of repeating units units are nucleotides nucleotides nitrogenous base base deoxyribose sugar phosphate phosphate group
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Each polynucleotide Consists of monomers called nucleotides Nitrogenous base Nucleoside O O O - - O P CH 2 5’C 3’C Phosphate group Pentose sugar (b) Nucleotide O
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Assembly into a Nucleotide : Assembly into a Nucleotide : Linkage N-1 to C-1’ Linkage N-9 to C-1’ Base and Sugar Base + sugar + phosphate
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Nucleotides polymerize via phosphodiester linkage
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The phosphodiester link The phosphodiester link H H base O O P O O H 2 C O C H H C C C O OH H H base
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Chapter 5 part 4_F10 - Nucleic Acids Chapter 5 (Pages 86...

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