dna_f08 - DNA Structure & Function Chapter 13 & 14...

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Chapter 13 & 14
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dna Has the capacity to store genetic information Can be copied and passed from generation to generation Located in the nucleus of cells “blueprint” of life
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Nucleic acids Information storage molecules Directions for building proteins Found in nuclei of eukaryotes Two forms Deoxyribonucleic acid Ribonucleic acid Polymers of nucleotides
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Nucleotide 5 Carbon sugar Deoxyribose ribose Phosphate group Nitrogenous base Adenine Guanine Cytosine Thymine (DNA only) Uracil (RNA only)
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Nucleotide Molecular structure
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Rna nucleotides
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Sugar phosphate backbone
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Complementary base Pair Rule G-C A-T A-U in RNA
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DNA Replication Template mechanism DNA strand is unwound and double helix is separated Single strand replicated via base pair rule Base pairs- hydrogen bonds Sugar phosphate backbone- Covalent bonds Dna polymerases
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DNA Replication is Semiconservative
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Dna function stores genetic information Instructions for all life and life processes Contains protein building instructions Uses specific code built into sequence of nucleotides
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terminology Gene Sequence of nucleotides that is the unit of hereditary information Ie. A recipe Genome The sum of an individuals genes
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dna_f08 - DNA Structure & Function Chapter 13 & 14...

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