1. RNA and Protein Synthesis

2. RNA RNA – Ribonucleic Acid Single stranded nucleotide chain
Single stranded helix
DNA’s Thymine is REPLACED by Uracil
A & T “break up” because of the new guy: U
But C & G are still 4-eva

3. RNA
3 types of RNA
mRNA – messenger
tRNA – transfer
rRNA – ribosomal

4. CUGGUAUCG mRNA - messenger RNA DNA: GACCATAGC mRNA:
Used for protein synthesis
Codes for amino acid sequence
made from DNA
travels
Nucleus  Cytoplasm  Ribosomes
DNA: GACCATAGC
mRNA:
Codon: group of 3 bases
“GAC” or “CAT”
CUGGUAUCG

5. tRNA – transfer RNA
Brings specific amino acid to the growing amino acid chain
“fetching puppy”
mRNA codon
“UGG”
Anticodon
“ACC”
Corresponding Amino Acid

6. The Genetic Code
Use mRNA codons with chart!!!!

7. DNA sequence: TACCATAGC mRNA sequence: AUGGUAUCG 1st Codon in seq: AUG
Find the 2nd letter in the codon across
Find the 3rd letter in the codon down
Find the first letter in the codon here

8. Codon “AUG” 
Methionine (START)

9. Practice using your own chart
DNA sequence: TCCAAT
mRNA sequence: AGGUUA
Codons: AGG UUA
Amino Acid sequence:
Arginine – Leucine

10. Argenine – Leucine – Aspartic Acid
Proteins = polypeptide = amino acid chain
Peptide Bonds – amino acids are connected together through peptide bonds

11. Transcription & Translation
Transcription – stage of protein synthesis where instructions for making a protein are transferred to an RNA molecule
DNA  mRNA : transcription
Translation – stage of protein synthesis when the information in mRNA is used to make proteins
mRNA  amino acid chain