Name: ____________________
Date: ________________
Notes: UNIT 6
“Protein Synthesis”

________ ________ are the building blocks of proteins

amino acids are determined by the sequence of ____________

needed to build proteins:
3 types of RNA:
1) mRNA = DNA from ________
to ______________
1. instructions (______)
2. parts (________ ________)
2) tRNA = _________ amino
acids to ____________
3. workers (______)
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protein
I. Transcription

= going from DNA to _____

differences between DNA & RNA:
DNA
RNA
1)
1)
2)
2)
3)
3)

takes place in the __________

just like __________ except A pairs with _____, not with T
1. DNA =
mRNA =
T A C G C A T G A
2. DNA =
mRNA =
T A C A C G A T T
Notes: UNIT 6
II. Translation
CODONS: (p. 292)
mRNA

= going from mRNA to __________

takes place at a ____________ in the cytoplasm

total of _____ amino acids
2. G C G

__________ = 3 nucleotides of ________
3. G G A

key codons:
4. C U U
1) AUG =
amino acid
1. U C C
2) UAA =

_______ brings amino acids to the ribosome

__________ (tRNA) pairs with ________ (mRNA)

SEQUENCE
1) start codon (_________) attaches to ____________
2) tRNA ___________ pairs with mRNA _________
3) ribosome slides along __________ to next _________
codon
anticodon
1. A C U
2. U G C
3. G U A
4. U G U
***continues until ________ codon
***amino acids joined by a _________ bond (long string of amino acids = __________)
DNA:
T A C C C C A T T
mRNA:
codon:
amino acid:
anticodon:
DNA:
mRNA:
codon:
amino acid:
anticodon:
T A C G T G A C T