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Life sciences IEB Gr 12: DNA

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21 pages
2021/2022 Written for academic year
Institution 12th Grade
Course Life Sciences
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A powerpoint consisting of my own notes (Gr12 2021 IEB student): History, Structure, Functions & types of DNA; DNA replication; RNA and its types; MtDNA; Protein synthesis; Genetic aberrations (mutations); DNA profiling and the Human Genome Project. Concise notes, mostly in bullet point form. Diagrams included.

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DNA

, The code for life
• Important for life because it holds the instructions for protein
synthesis and proteins are responsible for determining the structur
and function of an organism
• Nucleic DNA
• MtDNA & DNA in chloroplasts = extranuclear DNA
• DeoxyriboNucleic Acid structure:
• Five carbon, pentagonal sugar (deoxyribose)
• Phosphate group to link sugar onto next phosphate to form a chain
• Nitrogenous base (Adenine, Thymine, Cytosine, Guanine)

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