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:

Death

The cessation of all biological functions that sustain a living organism, marking the end of life.

Antagonistic Pleiotropy

A genetic phenomenon where one gene influences multiple traits in a way that is beneficial to one trait but detrimental to another.

S Allele

A specific version of a gene, often referring to those determining self-incompatibility in plants, which helps prevent self-fertilization and promotes genetic diversity.

Immunity

The ability of an organism to resist harmful microorganisms or viruses through the detection and response by the immune system.