Mutants That Constitutively Expressed β-Galactosidase Were Placed into Two Different

question 27

Multiple Choice

Mutants that constitutively expressed β-galactosidase were placed into two different groups.Where were the mutations for constitutive expression located?

• A)In either the lacZ or lacI genes.
• B)In either the lacZ or lacY genes.
• C)In either the lacZ gene or operator region.
• D)In either the lacI or lacY genes.
• E)In either the lacI gene or operator region.

Identify evidence supporting the theory that all cells share a common ancestor.

Recognize the role of membranes in cellular function, including exchange of materials and waste.

Understand the principles of cell theory.

Discuss the implications of cell biology on our understanding of life.

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Definitions:

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