Download File

DNA and Protein Synthesis Worksheet - Name:____________________________ Date: _____
In messenger RNA (mRNA) the 3 nitrogen bases are
called the codon.
The transfer RNA carries the anticodon (complementary
nitrogen bases to the codon) and the amino acid. The
tRNA matches the anticodon up with the codon in the
mRNA and releases the amino acid into the protein
chain.
There are about 20 amino acids that make up proteins,
and they are determined b the 3 nitrogen bases.
Name: _______________________ Row: _______
Date:_____________ Period:______
Protein Synthesis Worksheet
Directions:
1st Fill in the complimentary DNA strand using DNA base pairing rules.
2nd Fill in the correct mRNA bases by transcribing the bottom DNA code.
3rd Translate the mRNA codons and find the correct amino acid using the Codon Table
4th Write in the amino acid and the correct anti-codon the tRNA molecule.
5th The answer to the questions about protein synthesis below the amino acids.
A
T
G
G
T
A
G
C
T
A
A
C
C
T
T
C
G
A
T
1.
2.
3.
4.
5. mRNA is synthesized in translation or transcription?
6. mRNA has codon or anti-codons?
C
A
G
G
7.
8.
9.
10.
© Lesson Plans Inc. 2007
A
A
T
T
G
C
T
T
T
T
C
A
A
T
C
G
A
C
C
A
A
C
11.
12.
13.
14.
15. 1 or 3 codons equal one amino acid?
16. tRNA brings amino acids to the nucleus or ribosome?
17. A polypeptide is a sequence of proteins or amino acids?
18. tRNA has codons or anti-codons?
19. tRNA transfers amino acids during translation or transcription?
20. Ribosomes are the site where translation or transcription takes place?
G
T
A
C
21.
22.
23.
24.
© Lesson Plans Inc. 2007
T
C
A
A
G
G
T
C
T
A
G
Name:
Page 4
Protein Synthesis & Amino Acid
Period:
Date:
Codon to Amino Acid Circular Chart
Start at center of
chart with the 5´end.
Then work out from
center toward 3´end
to find aminio acid
abbreviation.
List of
Amino
Acids
Amino
Acid
Alanine
Arginine
Asparagine
Aspartic Acid
Cysteine
Glutamic Acid
Glutamine
Glycine
Histidine
Isoleucine
Three
Letter
ala
arg
asn
asp
cys
glu
gln
gly
his
ile
Single
Letter
A
R
N
D
C
E
Q
G
H
I
Amino
Acid
Leucine
Lysine
Methionine
Phenylalanine
Proline
Serine
Threonine
Tryptophan
Tyrosine
Valine
Three
Letter
leu
lys
met
phe
pro
ser
thr
trp
tyr
Val
Single
Letter
L
K
M
F
P
S
T
W
Y
V