Damage to the Substantia Nigra Causes a Decrease in the Neurotransmitter

question 130

Multiple Choice

Damage to the substantia nigra causes a decrease in the neurotransmitter dopamine. This causes a gradual, generalized increase in muscle tone, which is the main symptom of

• A) Parkinson disease.
• B) rabies.
• C) Alzheimer disease.
• D) myasthenia gravis.
• E) tetanus.

---

Definitions:

Good Genes Hypothesis

The good genes hypothesis suggests that certain traits preferred by mates are indicators of genetic quality or fitness.

Comb

A tool consisting of a shaft that holds a row of teeth for pulling through the hair to clean, untangle, or style it.

Genetic Diversity

The variety of genetic information within a population, species, or ecosystem, crucial for survival, adaptability, and evolutionary processes.

Hive Diversity

The variation within a bee or insect colony in aspects such as genetics, roles, and tasks, contributing to the overall health and functionality of the colony.