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DNA - Structure and functions

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DNA - Structure and functions

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  1. DNA - Structure and functions

  2. WHAT IS DNA? • Deoxyribonucleic acid • Present in the nucleus of the cell • Found in all living cells • Has all the hereditary materials • Individuals have unique DNA just like fingerprints

  3. A pentose sugar – deoxyribose • Phosphate • Base • Helices double-stranded • Has phosphorus that is present in the form of phosphate WHAT IS THE STRUCTURE OF DNA?

  4. Pyrimidines (cytosine and thymine) • Purines (guanine and adenine)

  5. Carries genetic materials from parents to their offspring • Responsible for the replication of carbon copies, essential for the transfer of genes • Chromosomes – in cell division it ensures equal distribution of the DNA • Mutations – helps in evolution and variations among the species • Transcription • Recombination • Cellular metabolisms WHAT ARE THE FUNCTIONS OF DNA?

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