Achondroplastic Dwarfism in Humans Is the Result of the Inheritance

question 63

Multiple Choice

Achondroplastic dwarfism in humans is the result of the inheritance of a dominant allele.If a heterozygous dwarf were to marry a person without this condition,the probability of having a dwarf child is:

• A)0
• B)¼
• C)½
• D)¾
• E)1

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Definitions:

Motor Units

A single motor neuron and all the muscle fibers it innervates, functioning as a single operational unit in muscle contraction.

Sternocleidomastoid

A muscle of the chest arising from the sternum and inner part of the clavicle.

Deltoid

A large, triangular muscle covering the shoulder joint, used for lifting and rotating the arm.

Storing Calcium

The process of accumulating calcium in the body, essential for bone health and other physiological functions.