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Comparing RNA & DNA

Comparing RNA & DNA. Biology CP – Phyllis Smith. Comparing RNA & DNA. X. X. X. X. X. X. X. X. Comparing RNA & DNA. X. X. X. X. X. X. X. Comparing RNA & DNA. X. X. X. X. X. X. X. Interpreting Diagrams: Understanding the Main Ideas. UUU. Phenylalanine. GTC. GUC.

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Comparing RNA & DNA

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  1. Comparing RNA & DNA Biology CP – Phyllis Smith

  2. Comparing RNA & DNA X X X X X X X X

  3. Comparing RNA & DNA X X X X X X X

  4. Comparing RNA & DNA X X X X X X X

  5. Interpreting Diagrams: Understanding the Main Ideas UUU Phenylalanine GTC GUC Glutamine GGA Glycine TAC Methionine CUA GAU Leucine GUG CAC Valine

  6. 13.1 and 13.2

  7. RNA synthesis Transcription: • Similar to DNA Replication • 1. DNA DOUBLE HELIX Unwinds • 2. DNA DOUBLE HELIX Unzips • 3. RNA Polymerase uses 1 STRAND to create mRNA • Use Promoters – tell the RNA polymerase where to stop and where to end • KEY DIFFERENCE: Only uses one strand from parental DNA NOT BOTH!

  8. INTRONS and EXONS • Pre –mRNA must be edited

  9. 2 types of RNA • mRNA = messenger RNA • tRNA = transfer RNA • Same rules of pairing for both mRNA and tRNA • How are the base pairing rules different from DNA?

  10. DNA or RNA? • CCC – GGG DNA, RNA, or Both? • CAT – GUA DNA, RNA, or Both? • UUU – AAA DNA, RNA, or Both? • TGC – ACG DNA, RNA, or Both?

  11. The Genetic Code • Nucleotides bases = A, C, G, T (U in RNA) • Codon • 3 nucleotide bases (or letters) = 1 word • Letters of RNA: A, C, G, and U • U =? • U pairs with ?

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