Download Unit 4 Review

Biology
Name: ______________________
Date: ____________
Answer the following questions using as many key terms as possible. Cross out key terms once you have used
them at least once. Revise your answers until all key terms are crossed out.
Write in complete sentences.
Questions:
1. What happens if cell division goes wrong?
2. What causes cancer?
3. Can I catch cancer?
Key Terms:
Mitosis
Cancer
Tumor
Benign
Malignant
Metastasis
Apoptosis
DNA
Nucleotide
Base Pairing (A,T,C,G)
Chromosome
Gene
Mutation
Protein
Protein Synthesis
Biology: DNA Practice
Name___________________________________ Date________ Hr______
Found in the
Made
of
DNA
Coils up
as
Made of many
Made of
Four types
Codes
for
Pairs with
Pairs with
Mitosis
Cancer
Tumor
Benign
Malignant
Metastasis
Apoptosis
DNA
Nucleotide
Base Pairing
Chromosome
Gene
Protein
Protein
Synthesis
RNA
Mutation
What is it? What structures
are involved?
Why are we doing it?
What happens if we stop?
Protein Synthesis
What are we expecting to
see?
What might happen next?
Figure 1 (Station 5)
Station 5
Proteins
1. Figure 1 illustrates the progression from DNA molecule to functional protein. Describe
the relationship between DNA, genes, and proteins.
2. Look back at your description of the DNA/gene/protein relationship, and describe the
role amino acids play in that relationship.
3. With relatively so few amino acids with which to build proteins, how can we account
for such a wide variety of proteins? In other words, how does one protein differ from
another?
4. What determines the function of proteins?
Station 6
Mutations
1. During protein synthesis, the following strand of mRNA was created.
mRNA:
AUG CCA UUU ACG GUG GCC CAG UGA
a. Using the above mRNA strand, list the chain of amino acids using the mRNA chart:
b. What does this chain of amino acids represent? In other words, what is the end result
of protein synthesis?
c. A mistake is made during protein synthesis that results in the mRNA sequence being
changed from GCC to GCG. What effect will this have on the resulting protein?
d. Are all mutations harmful? Explain.
RNA Chart