Codons and Translation Practice
Biology - Mann
Name____________
During the next class period – you will be taking a quick quiz on the
structure of DNA and transcription/ translation (the more extensive
unit test will occur in 3 weeks). The first question will be to draw a
picture of the structure of DNA labeling key components. The second
question will be a sequence of DNA which you will use to identify the
resulting strand of mRNA, anticodons of tRNA and sequence of amino
acids (you will be given a codon chart(both the circle one and the one
from the book).
Use your codon table to complete the DNA triplets, mRNA codons,
tRNA anticodons, and amino acids in the table below.
DNA triplet
mRNA codon
tRNA
anticodon
AAG
GGC
CAG
UUA
AAA
1. What 3 codons act as termination signals?
2. What codon means start?
3. List ALL of the codons for leucine.
Name ALL the codons for these amino acids:
4. Phenylalanine –
5. Serine –
6. Isoleucine –
Amino Acid
Continued from previous page
7. Valine –
9. Glycine –
10. Alanine –
11. If the DNA sequence is --- AAA TAT CCG TAG CAA ATG, write
the mRNA sequence, tRNA anticodon sequence, and the six amino
acids for this.
DNA:
AAA TAT CCG TAG CAA ATG
mRNA:
tRNA:
Amino acids:
12. Review – describe the process of translation in 4-6 simplified
steps.