A Norfolk Chicken Has Feathers That Have an Overall Gray

question 37

Multiple Choice

A Norfolk chicken has feathers that have an overall gray appearance, but if you look at an individual feather, it is either black or white. Feather color in these birds is expressed as __________.

• A) codominance
• B) incomplete dominance
• C) sex-linked
• D) pleiotropy

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Definitions:

Iliopsoas

A major hip flexor muscle group, consisting of the iliacus and psoas major muscles, important for lifting the thigh and trunk stability.

Rotator Cuff

A group of muscles and tendons that surround the shoulder joint, maintaining stability and allowing rotational movement.

Lateral Border

The outermost edge or boundary of an anatomical structure, situated farthest from the midline of the body.

Subscapularis

A muscle located beneath the scapula that helps rotate the arm and holds the humerus in place within the shoulder joint.