Diphtheria Is a Disease Produced by Corynebacterium Diphtheriae

question 19

Multiple Choice

Diphtheria is a disease produced by Corynebacterium diphtheriae. However, not all C. diphtheriae bacteria produce the toxin that causes this disease. To produce the toxin, the bacteria must first become infected with a bacteriophage. The process by which bacterial genes are transferred to new bacteria by the bacteriophage is called

• A) conjugation.
• B) transduction.
• C) replication.
• D) transformation.

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Definitions:

Therapeutically

Pertaining to the treatment, alleviation, or prevention of disease; aimed at healing or providing therapy.

Contrast Medium

A substance used in medical imaging examinations to improve the visibility of internal body structures in the resulting images.

Common Bile Duct

Duct that carries bile to the duodenum. It is formed from the merger of the cystic and hepatic ducts.

Cholangiography

A test that evaluates the function of the bile ducts by injection of a contrast medium directly into the common bile duct (during gallbladder surgery) or through a T-tube (after gallbladder surgery or during radiologic testing) and taking an X-ray.