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Neuron Nudge 2/5

Neuron Nudge 2/5. Identify each sequence below as belonging to DNA, RNA, or a protein. TATTACGAGGCGAT CCCGAAUCGAUUG PTGACMFVLIDKRR Which of the sequences above contains letters that are abbreviations for: Amino acids? Ribonucleotides ? Deoxyribonucleotides ?. Classwork 2 /5. Predict.

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Neuron Nudge 2/5

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  1. Neuron Nudge 2/5 • Identify each sequence below as belonging to DNA, RNA, or a protein. • TATTACGAGGCGAT • CCCGAAUCGAUUG • PTGACMFVLIDKRR • Which of the sequences above contains letters that are abbreviations for: • Amino acids? • Ribonucleotides? • Deoxyribonucleotides?

  2. Classwork 2/5

  3. Predict • Ribosomes are the site of protein synthesis, but they’re located outside of the nucleus. • What are the pros and cons of DNA traveling out of the nucleus to the ribosome? • What are the pros and cons of using a messenger molecule instead?

  4. Observe • Video #4

  5. DNA vs. RNA

  6. Transcription: Overview • Big idea: DNA  mRNA

  7. Transcription and the Gene • Only one gene at a time

  8. Transcription: Steps • Three steps • Initiation • Elongation • Termination

  9. Transcription: Steps • Initiation • RNA polymerase binds to promoter region and unzips DNA

  10. Transcription: Steps • Elongation • RNA polymerase reads the 3’-5’ DNA strand and creates a single-stranded mRNA in the 5’-3’ direction

  11. Transcription: Steps • Termination • RNA polymerase reaches terminator region, at which time it releases the completed mRNAand the DNA (which reforms the double helix)

  12. Transcription: Review • Video #5

  13. Enforce • Practice Quiz: Transcription

  14. Evaluate (Next Steps) • Confident students: • How will you make sure you remember this content? • Confused or uncertain students: • What questions do you have? • How will you make sure you master this material before our next test or quiz?

  15. Homework • Check DNA Replication answers (posted on classworkblog) • Create a transcription summary sheet OR flashcards OR study guide OR…

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