Recessive X-Linked Traits Are More Likely to Be Expressed in a Male

question 25

Multiple Choice

Recessive X-linked traits are more likely to be expressed in a male fruit fly than a female fruit fly because

• A)males are haploid.
• B)the male's phenotype results entirely from his single X-linked gene.
• C)the male chromosome is more fragile than the female chromosome.
• D)the male chromosome is more susceptible to mutations.

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Definitions:

Major Depressive Disorder

A serious mood disorder characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in most activities.

Persistent Depressive Disorder

A unipolar mood disorder that manifests many of the same symptoms as major depression, except that they are less severe. It persists for at least two years, with only brief interludes of normal mood. Also known as dysthymia.

Sleep Disorders

A group of conditions that affect the ability to sleep well on a regular basis, impacting overall health and quality of life.

Age Related Changes

Physical, cognitive, and emotional changes that occur as an individual ages, including changes in skin elasticity, memory, and emotional regulation.