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Transcript
Discovering the structure of DNA • DNA = Deoxyribose nucleic acid • Made out of sugars (deoxyribose), phosphates and nitrogen bases Discovering the structure of DNA • Structure was discovered in 1953 by James Watson and Francis Crick Discovering the structure of DNA Rosalind Franklin’s DNA image “Chargoff’s rule” A=T & C=G Cell division and DNA replication • Cells divide Growth, Repair, Replacement • Before cells divide they have to double cell structures, organelles and their genetic information DNA replication DNA replication QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. DNA replication QuickTi me™ a nd a TIFF (Uncompre ssed ) decomp resso r are need ed to se e th is p icture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. DNA replication QuickTi me™ a nd a TIFF (Uncompre ssed ) decomp resso r are need ed to se e th is p icture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Quic kTime™ and a TIFF (Unc ompres sed) dec ompres sor are needed to see this pic ture. DNA replication QuickTi me™ a nd a TIFF (Uncompre ssed ) decomp resso r are need ed to se e th is p icture. Quic kTime™ and a TIFF (Unc ompres sed) dec ompres sor are needed to see this pic ture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. DNA replication QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Original DNA strands DNA replication QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Newly assembled DNA strands DNA replication QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Semi-conservative replication DNA replication Let’s build our own DNA model and simulate DNA replication
