Download Name Date ______ Per _____ Protein Synthesis Overview Label

Name _______________________________ Date ___________ Per _____
Protein Synthesis Overview
Label the summary of protein synthesis diagrammed below using the following terms:
transcription, translation, DNA, mRNA, ribosome, tRNA, amino acid, polypeptide, nucleus,
codon, and anticodon.
What is it?
DNA
mRNA
tRNA
Amino acids
Transcription
translation
Where is it?
Picture
TRANSCRIPTION
For the following examples, give the appropriate sequence of DNA, mRNA, tRNA and/or
polypeptide (AA = amino acids). Remember: A codon chart can only be used for decoding a
strand of mRNA.
Example 1:
DNA:
TAC
GCG
CCT
AGG
GGG
TGG
mRNA:
_____
_____
_____
_____
_____
_____
AA:
_____
_____
_____
_____
______
______
Example 2:
DNA:
TAC
GCG
CCT
AGG
GGG
TGG
mRNA:
_____
_____
_____
_____
_____
_____
tRNA:
_____
_____
_____
_____
______
______
AA:
_____
_____
_____
_____
______
______
Example 3:
DNA:
C__
_G_
A__
_A_
__C
_T_
mRNA:
_U_
__A
__C
__A
_G_
_A_
tRNA:
_AU
G_U
_UG
G_U
CC_
G_A
AA:
_____
_____
_____
_____
_____
_____
DNA to Protein Worksheet- HARDER!!!
My name is: __________________________
Write the corresponding strand of DNA for each codon below.
CAT
TAG
GCC
AGC
TGA
CTT
GAC
CAG
GAG
TGC
________________________________________________________
Write the corresponding strand of mRNA for each DNA codon below.
CAT
TAG
GCC
AGC
TGA
CTT
GAC
CAG
GAG
TGC
________________________________________________________
Write the corresponding tRNA anti-codons for each mRNA codon below.
CAU
UAG
GCC
AGC
UGA
CUU
GAC
CAG
GAG
UGC
______________________________________________________
Write the amino acids for each mRNA codon below.
CUA
___________
AUC
____________
CGG
________________
UCG
____________
What anit-codon on tRNA would bind with these mRNAcodons?
a. AAA
b. GGA
c. UAC
d. CGU
What amino acids would the translation of these mRNA transcripts produce?
a.
UAA CAA GGA GCA UCC
b. UGA CCC GAU UUC AGC
1.
1.
2.
2.
3.
3.
4.
4.
5.
5.
DNA to Protein Worksheet- Easier
EXPLAIN these terms:
DNA Replication:
Transcription:
Translation:
My name is: _________________________
Codon:
Anti-codon:
Amino Acids:
1. Write the corresponding DNA strands for the DNA strands below:
ATT CAT TAG GAG CAC TAC GCA
__________________________
CGA TCG GAT CCA CAG TGA CGA
__________________________
TGA CGA CCG GGG TCC GAT CCA
__________________________
2. Write the corresponding mRNA strands for the DNA strands below:
ATT CAT TAG GAG CAC TAC GCA
__________________________
CGA TCG GAT CCA CAG TGA CGA
__________________________
TGA CGA CCG GGG TCC GAT CCA
__________________________
3. Write the corresponding tRNA anti-codons for each mRNA codon below:
AUU CAU UAG GAG CAC UAC GCA
__________________________
CGA UCG GAU CCA CAG UGA CGA
__________________________
UGA CGA CCG GGG UCC GAU CCA
__________________________
Name _______________________________________ Date ___________ Per ____
DNA: The Molecule of Heredity
1. A nucleotide is made of three parts: a ___________________ group, a five carbon
__________________, and a _________________ base.
2. In a single strand of DNA, the phosphate group binds to the __________________ of
the next group.
3. Chargaff's rule states that the DNA of any species contains equal amounts of
______________ & __________________ and also equal amounts of
_________________ & _________________.
4. In DNA, thymine is complementary to (or pairs with) ________________ ; cytosine is
complementary to _____________.
5. In a strand of DNA, the percentage of thymine is 30%. What is the percentage of
cytosine in the same DNA strand? _________________
6. James Watson and Francis Crick with, the help of Rosalind Franklin and others,
determined that the shape of the DNA molecule was a __________________________.
7. On the diagram to the right:
Circle and label a nucleotide.
Label the sugar and phosphate molecules.
Label the bases that are not already labeled.
Label a base pair.
Label the sugar-phosphate backbones.
Label the hydrogen bonds.
DNA Replication
1. Number the steps of DNA replication in the correct order (1, 2, 3)
_______Daughter strands are formed using complementary base pairing.
______ DNA unwinds
______ The DNA of the daughter strands winds with together with its parent strand.
2. Why is DNA replication called "semi-conservative"?
________________________________
3. What enzyme unwinds or unzips the parent strand?
_________________________________
4. What enzyme connects the new bases to the old bases in the DNA template?
___________________________________________________________________
5. What enzyme connects the new nucleotides together and proofreads them?
___________________________________________________________________
6. Show the complimentary base pairing that would occur in the replication of the short
DNA molecule below. Use a colored pencil (or different pens, markers, etc.) to show which
strands are the original and which are newly synthesized.
Original
DNA
Strand 1
---Original
Original DNA
---DNA
Strand 1 (copy
---Strand 2
from left)
>
A-T
C-G
T-A
T-A
A-T
C-G
G-C
C-G
C-G
G-C
A-T
T-A
New
New
DNA + DNA
Strand
Strand
Original DNA
Strand 2 (copy
from left)