The LacZ Gene Is Sometimes Included in a Cloning Vector

question 12

Multiple Choice

The lacZ gene is sometimes included in a cloning vector.What does it encode?

• A) a restriction enzyme that cuts the vector while it is in transformed cells
• B) a blue pigment that identifies any cell that has beentransformed
• C) an enzyme that converts RNA to DNA
• D) an enzyme that confers antibiotic resistance
• E) a detectable enzyme that is not produced if the gene is interrupted by an insert

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Definitions:

Antidepressant Medications

Drugs that are used to treat depressive disorders by correcting chemical imbalances of neurotransmitters in the brain.

Temporary Memory Impairments

Short-term reductions in memory ability, which may be caused by various factors such as stress, trauma, or certain medical conditions.

Escitalopram

An antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, used to treat anxiety and major depressive disorder.

Antidepressants

Medications used to treat symptoms of depression by altering brain chemistry.