If the Characteristic Followed in the Pedigree Is X-Linked Recessive

question 53

Multiple Choice

If the characteristic followed in the pedigree is X-linked recessive allele, what is III-1's genotype?

• A) hemizygous for a dominant allele
• B) hemizygous for a recessive allele
• C) definitely heterozygous
• D) definitely homozygous dominant
• E) either heterozygous or homozygous dominant

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Definitions:

Respiratory Capacities

the combined volumes of air that the lungs are capable of holding, considered in different phases of respiration.

Vital Capacity

The maximum amount of air a person can expel from the lungs after a maximum inhalation.

Regular Exercise

Routine physical activity intended to improve or maintain physical fitness and overall health.

Sternocleidomastoid

A prominent neck muscle that extends diagonally across the side of the neck, involved in the rotation and flexion of the head.