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When it is time to replicate, the DNA unzips (at the hydrogen bonds).

Replication. When it is time to replicate, the DNA unzips (at the hydrogen bonds). Replication. New complementary nucleotides move in to match BOTH halves of the DNA and form hydrogen bonds with the old nucleotides. Replication.

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When it is time to replicate, the DNA unzips (at the hydrogen bonds).

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  1. Replication When it is time to replicate, the DNA unzips (at the hydrogen bonds).

  2. Replication New complementary nucleotides move in to match BOTH halves of the DNA and form hydrogen bonds with the old nucleotides.

  3. Replication The finished product is: 2 identical DNA molecules that are ½ new and ½ old.

  4. Replication

  5. Replication

  6. Replication

  7. Replication

  8. Replication

  9. Replication

  10. Replication

  11. Replication

  12. Transcription Cells gets the message that a protein needs to be made and a portion of DNA unwinds, exposing the gene that needs to be copied.

  13. Transcription Nucleotides move in to one half of the unzipped DNA. These nucleotides have ribose sugar and uracil instead of thymine.

  14. Transcription The mRNA leaves the nucleus and goes to the ribosome. The DNA rezips.

  15. Transcription

  16. Transcription

  17. Transcription

  18. Transcription

  19. Transcription

  20. Transcription

  21. Transcription

  22. Transcription

  23. Transcription

  24. Transcription

  25. Transcription

  26. Transcription

  27. Transcription

  28. Transcription

  29. Translation The mRNA goes to the ribosome.

  30. Translation The mRNA tells the ribosome which amino acids to assemble into a protein.

  31. Translation The amino acids come into the ribosome and are attached to each other by peptide bonds.

  32. Translation The protein is finished and is ready to be used by the cell.

  33. Translation A U G GG C U U A AA G C A G U G C A C G U U

  34. Translation A U G GG C U U A AAG C A G U G C A C G U U

  35. Translation A U G GG C U U A AAG C A G U G C A C G U U

  36. Translation A U G GG C U U A AAG C A G U G C A C G U U

  37. Translation A U G GG C U U A AAG C A G U G C A C G U U

  38. Translation A U G GG C U U A AAG C A G U G C A C G U U

  39. Translation A U G GG C U U A AAG C A G U G C A C G U U

  40. Translation A U G GG C U U A AAG C A G U G C A C G U U

  41. Translation A U G GG C U U A AAG C A G U G C A C G U U

  42. Translation A U G GG C U U A AA G C A G U G C A C G U U

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