Download review - Humble ISD

1. Figure 2 is a diagram illustrating protein synthesis. Select four different colored pencils, and use them to color the coding circles
and the corresponding structures in the diagram.
2. Then, using the letters of the genetic code, label the nitrogen bases on the unlabeled strand of the DNA double helix molecule
according to Chargaff’s rules.
3. Label the nitrogen bases of the mRNA being transcribed from DNA. Please note: the same mRNA is shown twice – once as it is
transcribed and then, as it is translated. Label them both.
4. Label the anticodons on the four tRNA molecules.
5. Use the genetic code chart to label the corresponding amino acids carried by each tRNA. The amino acids are represented by the
structure that looks like a puzzle piece at the top of each tRNA. You may abbreviate the names of the amino acids by using the first
three letters only
6. Lastly, complete the statements about protein synthesis.
1. Transfer of the genetic message from DNA to mRNA is called ________________________.
2. Assembly of amino acids according to the genetic information carried by mRNA is called _______________________________.
3. The set of three nitrogen bases on the mRNA molecule that specify for an amino acid is called a _________________________.
4. The set of three nitrogen bases on tRNA complementary to mRNA is an _________________.
5. The building blocks or _____________________ of ____________________ are amino acids.
6. The monomers of nucleic acids are ___________________________, which are composed of __________________________.
Backbones of the DNA double helix
tRNA molecules
Backbone of the mRNA strands
Amino acid molecules