First you need to convert the template strand (what you have) to the coding strand.
So using the following guide convert the given letters:
A->T
T->A
G->C
C->G
This will now encode your strand as:
CCTGTAAAAGTGGCA
Break these into three letter chunks:
CCT GTA AAA GTG GCA
Your teacher should either give you a guide or tell you which ones to memorize, but you could also use the following chart to figure out which amino acids will be synthesized:
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Codons.html
Use the chart underneath The Genetic Code(DNA) to figure out what matches where.
You will then get the following:
1. Proline (cct)
2. Valine (gta)
3. Lysine (aaa)
4. Valine (gtg)
5. Alanine (gca)
Also remember that if you see a T in your original strand it could also be interpreted as a U. You can always check your answers using this handy online app: http://www.geneseo.edu/~eshamb/php/dna.php
Source(s):
http://www.geneseo.edu/~eshamb/php/dna.php
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Codons.ht