1. RNA transcription Notes

2. RNA
Ribonucleic Acid

3. RNA Structure
Composed of nucleotides P
Base
Sugar

4. RNA Structure DNA A T C G A C A A T T C G mRNA U A G C U G U U A A G C
Bases: Uracil Replaces Thymine
A = U (Uracil)
C = G
DNA A T C G A C A A T T C G
mRNA U A G C U G U U A A G C

5. RNA DNA
“Deoxy”

6. RNA Structure
Single Stranded
(only one strand)

7. RNA Transcription
Textbook Definition:
First stage of protein synthesis. An RNA stand is assembled on exposed bases of an unwound strand of a DNA double helix.
Transcription = the process of building an RNA copy of a DNA sequence.

8. DNA replication vs. RNA transcription
RNA is single stranded
U replaces T in RNA
RNA Transcription
only happens in small
sections (one gene).
DNA replication
copies the whole
strand.

9. 6 Steps of Transcription
Enzyme untwists the DNA and starts transcription
2. Enzyme unzips DNA (transcription bubble)
3. Free RNA nucleotides base pair w/ DNA
A=U
C=G

10. 4. RNA nucleotides bond together at the backbone
5. New single strand RNA detaches from DNA template
6. Enzyme closes (re-zips) and twists DNA

12. Central Dogma