Based on the Information Below, Answer the Following Question(s), Assuming

question 49

Multiple Choice

Based on the information below, answer the following question(s) , assuming complete dominance.
"In humans, a widow's peak is a dominant trait, and a straight hairline is a recessive trait."
-Cystic fibrosis is a genetic disorder that results from the inheritance of two recessive alleles. What is the chance that a child will inherit the disorder if one parent is heterozygous for this gene and one parent has cystic fibrosis?

• A) 0%
• B) 25%
• C) 50%
• D) 75%
• E) 100%

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Definitions:

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness cycles.

Hypnagogic Sensations

Experiences occurring at the onset of sleep, often involving visual, auditory, or tactile hallucinations.

Sleep Spindles

Brief bursts of brain activity visible on an EEG that occur during stage 2 of sleep, associated with memory consolidation and synaptic plasticity.

Imaginatively

In a manner that uses imagination or creative thinking.