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DNA  RNA  Protein

DNA  RNA  Protein. Central Dogma. Central Dogma – describes how information from DNA gets used to make proteins 3 processes: 1. Replication copies DNA 2. Transcription converts DNA message into RNA

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DNA  RNA  Protein

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  1. DNARNAProtein

  2. Central Dogma • Central Dogma – describes how information from DNA gets used to make proteins • 3 processes: • 1. Replication copies DNA • 2. Transcription converts DNA message into RNA • 3. Translation interprets an RNA message into a string of amino acids, called a polypeptide. Either a single polypeptide or many polypeptides work together to make up a protein. DNA RNA PROTEIN

  3. RNA: Ribonucleic Acid Made of nucleotides with 3 parts: • 1. A sugar • 2. A phosphate • 3. A nitrogen-containing base Can find RNA in two places in the cell: • Cytoplasm • Nucleus

  4. RNA is different from DNA 3 ways RNA and DNA are different: • 1. Sugar in RNA is ribose, not deoxyribose. Ribose has one more oxygen atom than deoxyribose. • 2. RNA has four bases: A, C, G, U. A pairs with U and G pairs with C. • 3. RNA is single stranded, not double stranded like DNA

  5. mRNA copied from DNA Strand • Remember! A pairs with U and G pairs with C. Example: GGCTATATC mRNA: CCGAUAUAG Example: CTGCGCTAT mRNA: GACGCGAUA

  6. DNA versus RNA Video

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