Cleft Chin Is an X-Linked Dominant Trait

question 70

Multiple Choice

Cleft chin is an X-linked dominant trait.Assume that a man with a cleft chin marries a woman with a round chin.What percent of their male progeny will show the cleft chin trait?

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

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Definitions:

Neurotransmitters

Chemical substances that transmit signals across a synapse from one neuron to another in the brain, influencing various bodily functions and behaviors.

Synaptic Vesicles

Small sacs in a synapse that release neurotransmitters into the synaptic cleft to transmit neural signals between neurons.

Blood-Brain Barrier

A semipermeable barrier of endothelial cells that prevents most substances in the blood from entering the brain, thereby protecting it from toxins while allowing essential nutrients to pass through.

Neuroprotective

Pertaining to substances or practices that protect nerve cells from damage, degeneration, and impairment, often discussed in the context of neurodegenerative diseases.