Which Is Least Likely to Occur in a Non-Mutant Bacterial

question 143

Multiple Choice

Which is least likely to occur in a non-mutant bacterial cell?

• A)  -galactoside transacetylase is present at a high concentration when  -galactoside is present at a low concentration.
• B)  -galactoside transacetylase is produced at very low levels in the absence of lactose.
• C)  -galactoside transacetylase is produced at very low levels when glucose is abundant.
• D)  -galactoside transacetylase is produced at high levels when lactose is at a high concentration and glucose is not available.
• E)  -galactoside transacetylase and β-galactoside are both present in very low concentrations.

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Definitions:

Counterconditioning

A behavior therapy technique where a positive response is conditioned to replace a negative or undesirable response to a stimulus.

Unconditional Positive Regard

A concept in client-centered therapy proposing that therapists should accept and support their clients without judgment.

Reinforcer

Any stimulus that strengthens or increases the probability of a specific response or behavior.

Unconscious Anxieties

Fears or worries that reside within the unconscious mind, influencing behavior and emotions without the individual's conscious awareness.