Download Worksheet 13 - Iowa State University

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BIO 313 Worksheet 13
Supplemental Instruction
Iowa State University
Laura
Bio 313
Dr. Rodermel
11/3/15
WARM UP:
Draw the lac operon in the presence of lactose:
1. In the following pair, identify the homozygous, heterozygous, dominant, and recessive
alleles:
AA x Aa
2. Fill in the following blanks:
a. ___________ is the exchange of genetic material between two bacteria
b. This exchange requires the presence of ___ ____________
c. The cell that has this factor is known as _________ and the one that lacks it is
known as __________
d. This process also requires the formation of a ________ __________ that connects
the adjacent cells, ___________ is responsible for its formation
3. What is a partial diploid?
4. How were partial diploid incorporated into the lac operon? What mutation resulted?
5. What is the function of the cAMP-CAP complex under the following conditions?
a. High Glucose
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b. Low Glucose
6. What are three ways that eukaryotic and prokaryotic cells differ in their gene regulation?
a.
b.
c.
Challenge Questions
7. A mutation prevents the catabolite activator protein (CAP) from binding to the promoter in the
lac operon. What will the effect of this mutation be on transcription of the operon?