1. Transcription & Translation
GENE EXPRESSION
Transcription
&
Translation

2. Transcription: DNA → RNA
Base Pairing Rules:
A-U
C-G

3. Translation: RNA → a.a. → protein
proline
alanine
methionine
tRNA
phenylalanine
Cytoplasm
anticodon
tRNA
tRNA
anticodon
anticodon
codon
codon
codon
rRNA

4. Gene Expression Base Pairing Rules: A-U C-G Cytoplasm Nuclear Membrane
mRNA Transcription
Cytoplasm
Nuclear Membrane
Nucleus
Base Pairing
Rules:
A-U
C-G
Translation

5. DNA vs. RNA *double stranded *A, T, G, C *deoxyribose *single stranded
*A, U, G, C
* ribose

6. Transcription vs. DNA Replication
*makes an RNA
molecule
*only 1 DNA strand is
used as template
*makes copies of DNA
molecule
*both strands of DNA
are used as a template

7. 2 3
1. Which step below represents transcription? 2. Which step below represents translation? 3. Which step below represents DNA replication? 1
(Proteins)

8. DNA:
Codons:
GUC AUA CUA
5. What are the codons that correspond to the following segment of DNA? CAG TAT GAT What are the anticodons that correspond to the following segment of mRNA codons? UUA – UAC – CAG
mRNA:
anticodons:
AAU AUG GUC