MOLECULAR GENETICS DNA & RNA.

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Presentation transcript:

MOLECULAR GENETICS DNA & RNA

A Brief Look at History Key figures: Leverne Griffith Avery, MacCleod, McCarty Hershey, Chase Chargaff Franklin Watson and Crick

How does DNA really look? - Time line

Double Helix “twisted ladder” Handrails are sugar-phosphate backbone Five carbon sugar Phosphate group Rungs are the nucleotides One of five nitrogen-containing bases Adenine (A), Thymine (T), Cytosine (C), Guanine (G) and RNA has Uracil (U).

A few TERMS! YAHOO! Complementary base pairs-A&T, G&C Anti-parallel – like a highway Gene – functional sub unit of DNA Genome – sum of all the DNA an organism

DNA vs RNA