What Lethal Disease Is Characterized by Homozygosity of the

question 4

Multiple Choice

What lethal disease is characterized by homozygosity of the ⁰-thalassemia gene haplotype in utero?

• A) Hydrops fetalis
• B) Hemolytic disease of the newborn (HDN)
• C) Hemoglobin Portland disease
• D) Hemoglobin H disease
• E) Hemoglobin Zurich

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Definitions:

Mantoux Test

A diagnostic tool for tuberculosis where a small amount of testing material is injected under the skin to see if there's a reaction, indicating exposure to TB bacteria.

High-Prevalence Regions

Areas or regions where a particular disease or condition is found more frequently than in other regions.

\(\beta\)-Adrenergic Agonists

Medications that stimulate beta-adrenoceptors in the heart, lungs, and other tissues, with effects such as relaxing airway muscles or increasing heart rate.

Methylxanthines

A class of chemicals including caffeine, theobromine, and theophylline, found in coffee, tea, and cocoa, used medically to relax bronchial muscles.