In the Figure Below, Are the Genes That Encode the Enzymes

question 2

Multiple Choice

In the figure below, are the genes that encode the enzymes needed to make tryptophan on or off?

• A)The genes are on because the genes involved in tryptophan production are housekeeping genes.
• B)The genes are on because the complex of tryptophan and repressor protein allows RNA polymerase to bind to the promoter.
• C)The genes are off because the complex of tryptophan and repressor protein prevents RNA polymerase from interacting with regulatory DNA.
• D)The genes are off because when tryptophan is plentiful in the environment, RNA polymerase is not made.

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Definitions:

Overweight People

Individuals having more body fat than is optimally healthy, generally measured by a body mass index (BMI) over the healthy range.

Depression

A common and serious medical illness that negatively affects how one feels, thinks, and acts, leading to feelings of sadness and/or a loss of interest in activities once enjoyed.

Anorexia Nervosa

An eating disorder characterized by an obsessive fear of gaining weight, leading to severe restrictions on food intake and extreme weight loss.

Fatal

Resulting in death or having a very severe outcome with irreversible consequences.