The Discovery of a Gene in Aplysia Slugs That Results

question 55

Multiple Choice

The discovery of a gene in Aplysia slugs that results in protein products including egg-laying hormone is evidence that

• A)the egg-laying behavior is innate or hardwired into the slugs' brain.
• B)the egg-laying behavior has absolutely no nervous system involvement.
• C)genes can control endocrine gland secretions that can control behavior.
• D)this slug could avoid being eaten by garter snakes.
• E)genes only influence physiology and structure but not behavior.

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Definitions:

Axon Terminal

The endpoint of an axon or nerve fiber, where it makes synaptic connections with another nerve cell or muscle cell.

Selective Permeability

A property of cellular membranes that allows certain substances to pass through while keeping others out.

Neural Membrane

The lipid bilayer that encloses a neuron, playing a crucial role in the conduction of electrical impulses.

Resting Potential

The electrical potential of a neuron when it is not actively sending a signal, representing a state of readiness.