Kimmerle - F208 - 23 Name _____________________________________ Date: ________ Hr. _____
DNA to Proteins Decoding
Transcribe the DNA into mRNA then translate the mRNA into a strand of Amino Acids.
Use the 1 letter Amino Acid abbreviations found on page 5 to decode a word from each DNA
sequence. You will then use these words to fill in the blanks on page 4 of this review.
DNA
GGT CTC GGA TGC TAA CTG CTC ATC
mRNA
AA
Word
DNA
GTG CTT AAT TAA ACA CGA AGG CTC
mRNA
AA
Word
DNA
CGT CTA CTT TTG TAT TTA CTC
mRNA
AA
Word
DNA
mRNA
AA
Word
CCC CTC TTG CTT TGG TAT ACA AGC
DNA
AAA GCT CGG TTG ACG TAT AGC ACT ACG GCT TAG ACA TTT
mRNA
AA
Word
DNA
TGG GTG ATA TAC TAG TTA CTT
mRNA
AA
Word
DNA
TGG
CTC TAC GGT AAC CGG TGC CTC
TCT
TTA
mRNA
AA
Word
DNA
CGC
mRNA
AA
Word
DNA
TGC
TCC CGA
TAG TGA TCG
mRNA
AA
Word
2
DNA
CGA CTA CGT GGG TGC
mRNA
AA
Word
DNA
CTA TTG CGG
mRNA
AA
Word
PART 2
Directions: In the Box below list the words you came up with to create a
word bank for Part 3.
3
PART 3
Directions: Use the words you created with your amino acid abbreviations as a word bank to answer
the following questions (these are not necessarily in the same order as your “decode” message)
1. Amino acids form a long poly-____________________ chain that will be folded into a protein.
2. ______________________ is a purine nitrogenous base that can be found in both DNA and RNA
3. ________________________ is a nitrogenous base that cannot be found in RNA
4. The study of the variety of inherited traits in a species is called ___________________________.
5. _____________________________ is one of the scientists credited with discovering the double
helix structure of DNA.
6. DNA replication is considered a semi-conservative process because each strand of the original
molecule acts as a ___________________ so that new nucleotides can be placed in the correct
order.
7. _________ is a molecule that contains all the genetic information and never leaves the nucleus.
8. _________ is a molecule that is a transcript of one gene, and leaves the nucleus to find a ribosome.
9. Changes in the order of nucleotides can affect the expressed ___________________ of an
organism.
10. If a mutation in the sex cells causes a positive change in the traits of an individual's offspring then
this could cause the species to _________________ over time.
11. _______________________ is an enzyme used to separate the strands of a DNA double helix
PART 3 - Extra Credit!
Create a word using the letter abbreviations, then work backward to determine the mRNA and DNA
sequence required to create this word Your word must be at least 6 letters and must be school
appropriate.
DNA
mRNA
AA
Word
4
The single-letter abbreviations for the 20 amino acids are
A – alanine
C - cysteine
D – Aspartic acid
E – Glutamic acid
F - Phenylalanine
G - Glycine
H - Histidine
I - Isoleucine
K - Lysine
L - Leucine
M - Methionine
N - Asparagine
P - Proline
Q - Glutamine
R - Arginine
S - Serine
T - Threonine
V - Valine
W - Tryptophan
Y - Tyrosine
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