4.3.5 Formative Assessment:

1. A ________________ is a heritable change in DNA.

a.         Chromosome

b.         DNA

c.         Mutagen

d.         mRNA

e.         Mutation

2. A ______________ is a physical or chemical agent that can cause mutations in DNA.

a.         Chromosome

b.         DNA

c.         Mutagen

d.         mRNA

e.         Mutation

3. Which of the following have the potential to cause mutations in DNA?

a.         X-rays

b.         Tobacco

c.         Pesticides

d.         All of the above

Matching: Identify each type of gene mutation as substitution, insertion or deletion

Matching: Identify each type of chromosomal mutation as deletion, duplication, inversion or translocation.

Short Answer: Answer each question in 2-3 sentences.

1. Are mutations always bad? Why or why not?

2. Why should humans limit their exposure to radiation (such as x-rays and ultraviolet light)? Be specific and make sure to mention DNA.

3. How are mutations related to cancer?