After Screening a Colony of Bacteria for a Given Gene

question 19

Multiple Choice

After screening a colony of bacteria for a given gene, you discover 100 mutant colonies out of 3 million total colonies. What is the mutation frequency for this gene in the population?

• A) 1.0 x 105
• B) 1.0 x 10-5
• C) 3.0 x 105
• D) 3.3 x 10-5
• E) None of the answers are correct

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Definitions:

Benzodiazepines

A class of psychoactive drugs used to treat conditions such as anxiety, insomnia, and seizures, working by enhancing the effect of the GABA neurotransmitter in the brain.

Receptor Sites

Specific regions on the surface of cells or within cells that selectively bind to substances, such as neurotransmitters, hormones, or drugs, triggering a cellular response.

GABA

Gamma-Aminobutyric Acid (GABA) is a neurotransmitter in the brain that plays key roles in regulating anxiety, mood, and muscle tone.

Brain Circuits

Networks of neurons in the brain that work together to process information and control behaviors.