Two Normal Individuals Have a Child Who Has Cystic Fibrosis,an

question 40

Multiple Choice

Two normal individuals have a child who has cystic fibrosis,an autosomal recessive disease.What were the chances of this happening? (Draw a Punnett square to help you determine the answer. )

• A) 1:4 chance
• B) 2:4 chance
• C) 3:4 chance
• D) 4:4 chance
• E) less than 1:4 chance

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Definitions:

Reticular Formation

A network of neurons located in the brainstem that plays a key role in controlling arousal and consciousness.

Somatosensory Cortex

The section of cortex in which sensory stimulation is projected. It lies just behind the central fissure in the parietal lobe.

Genetic Overlap

The sharing of genetic factors among different traits or disorders, suggesting a common genetic basis.

Association Areas

Regions of the brain that integrate input from different sensory modalities, contributing to complex functions like thought, learning, and memory.