The Null Phenotype in the Duffy System Is Produced by Inheriting

question 19

Multiple Choice

The null phenotype in the Duffy system is produced by inheriting

• A)the genotype Fyᵃ/Fyᵃ
• B)the phenotype Fy (a+b-)
• C)the FY3 antigen
• D)two FY genes

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Definitions:

Intercostal

Pertaining to the muscles and nerves situated between the ribs, involved in the mechanics of breathing.

Serratus Anterior

A muscle located on the side of the chest, playing a significant role in the movement of the shoulder blade.

Pectoralis Major

A large muscle in the upper chest that helps with the movement of the shoulder and arm.

Rectus Abdominis

The rectus abdominis is a long muscle that runs vertically on each side of the anterior wall of the human abdomen, primarily responsible for flexing the lumbar spine and helping to compress abdominal contents.