When Might a Family Face a Crisis If the Onset

question 26

Multiple Choice

When might a family face a crisis if the onset of a chronic disorder is gradual?

• A)after a period of about six months
• B)when they realize something is wrong
• C)after a period of about a year
• D)when the disorder is diagnosed

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Definitions:

Inducible Operon

A segment of DNA that includes genes which are transcribed together in response to an environmental signal.

Lactose Operon

A set of genes and their regulatory sequences involved in the metabolism of lactose in bacteria, demonstrating control of gene expression.

Promoter Regions

Specific DNA sequences where RNA polymerase binds to initiate transcription of genes.

Operator

In genetics, a segment of DNA to which a repressor binds, controlling the expression of genes; in mathematics, a function or symbol that represents a function from a set of numbers.