A 5-Month-Old Boy with Chronic Diarrhea and Failure to Thrive

question 343

Multiple Choice

A 5-month-old boy with chronic diarrhea and failure to thrive is found to have a low blood T-lymphocyte count and severely decreased serum immunoglobulin.  After thorough evaluation, an experimental treatment is proposed to his parents.  The therapy consists of infecting the patient's cells with a retroviral vector containing the gene for a protein that is deficient in this patient.  Which of the following proteins is most likely coded by this gene?

• A)Adenosine deaminase
• B)Myeloperoxidase
• C)NADPH oxidase
• D)Reverse transcriptase
• E)Xanthine oxidase

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Definitions:

Dynamic Flexibility

The ability of a muscle to quickly and repeatedly stretch and contract through a wide range of motion.

Range Of Motion

The full movement potential of a joint, usually its range of flexion and extension.

Neglected Component

A critical part or aspect of something that is often overlooked or given insufficient attention.

Fitness

A state of health and well-being achieved through regular physical activity, proper nutrition, and sufficient rest.