.. Draw a DNA helix opened up to copy a single gene (CAREFUL this is NOT a eplication bubble). You can make lines straight and parallel if you would like 2. On the bottom strand starting in middle and pointing to the left, draw a 90 degree arrow to show the start of transcription. 3. Add 10 DNA bases of your choice (A,T, C or G) along the bottom line to left of the 90 degree arrow. 4. Add the complementary DNA bases along the top line. 5. Beginning at the 90 degree arrow, transcribe the DNA into RNA. Write the appropriate letters. Label this as mRNA 6. Label 5' and 3' ends of all nucleic acids. 7. Label the template strand and the coding strands of DNA. 8. Label the promoter. Upload steps 1-8 but on your own please practice all 4 possible flips of this. Arrow on bottom facing left or right. Arrow on top facing left or right.)

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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**DNA Transcription Exercise**

1. **Draw a DNA Helix**: Begin by drawing a DNA helix opened up to copy a single gene. Note: *Careful, this is not a replication bubble*. Lines can be straight and parallel if preferred.

2. **Indicate Transcription Start**: On the bottom strand, starting in the middle and pointing to the left, draw a 90-degree arrow to indicate the start of transcription.

3. **Add DNA Bases**: Choose 10 DNA bases (A, T, C, or G) and add them along the bottom line to the left of the 90-degree arrow.

4. **Complementary Bases**: On the top line, add the complementary DNA bases corresponding to the ones chosen in the previous step.

5. **Transcribe to RNA**: Starting at the 90-degree arrow, transcribe the DNA into RNA by writing the appropriate RNA bases. Label this sequence as mRNA.

6. **Label Ends**: Clearly label the 5' and 3' ends of all nucleic acids in your diagram.

7. **Identify Strands**: Label the template strand and the coding strand of the DNA.

8. **Indicate Promoter**: Ensure the promoter is clearly labeled in your drawing.

*(Practice Exercise)*: Repeat steps 1-8, experimenting with all four possible orientations of the DNA helix. Try the bottom arrow facing left or right, and the top arrow facing left or right.
Transcribed Image Text:**DNA Transcription Exercise** 1. **Draw a DNA Helix**: Begin by drawing a DNA helix opened up to copy a single gene. Note: *Careful, this is not a replication bubble*. Lines can be straight and parallel if preferred. 2. **Indicate Transcription Start**: On the bottom strand, starting in the middle and pointing to the left, draw a 90-degree arrow to indicate the start of transcription. 3. **Add DNA Bases**: Choose 10 DNA bases (A, T, C, or G) and add them along the bottom line to the left of the 90-degree arrow. 4. **Complementary Bases**: On the top line, add the complementary DNA bases corresponding to the ones chosen in the previous step. 5. **Transcribe to RNA**: Starting at the 90-degree arrow, transcribe the DNA into RNA by writing the appropriate RNA bases. Label this sequence as mRNA. 6. **Label Ends**: Clearly label the 5' and 3' ends of all nucleic acids in your diagram. 7. **Identify Strands**: Label the template strand and the coding strand of the DNA. 8. **Indicate Promoter**: Ensure the promoter is clearly labeled in your drawing. *(Practice Exercise)*: Repeat steps 1-8, experimenting with all four possible orientations of the DNA helix. Try the bottom arrow facing left or right, and the top arrow facing left or right.
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