The Hereditary Disorder That Is Caused by a Mutation in the Gene

question 54

Multiple Choice

The hereditary disorder that is caused by a mutation in the gene for a membrane protein that transports chloride ions is:

• A)cystic fibrosis.
• B)pancreatitis.
• C)Crohn's disease.
• D)none of the above

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Definitions:

Circumference

The perimeter or boundary line of a circle, often measured to understand the size or to describe the distance around it.

Bevel Gear

A type of gear where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped, often used in differential drives.

Addendum

The radial distance from the pitch circle of a gear to the top of the teeth.

Dedendum

The distance from the pitch circle of a gear to the bottom of the tooth groove.