Which of These Findings Casts Doubt on the Specificity Theory

question 43

Multiple Choice

Which of these findings casts doubt on the specificity theory of pain?

• A) Researchers have failed to find specific skin receptors devoted to relaying pain.
• B) Phantom limb pain occurs in 70% of amputees.
• C) Injury can occur without pain, such as that experienced by the soldiers at Anzio beach.
• D) All of these are challenges to the validity of the specificity theory of pain.

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Definitions:

Landsteiner

Karl Landsteiner was an Austrian biologist and physician, best known for discovering the ABO blood group system in 1901.

Heterozygous Dihybrid

An individual possessing two different alleles for two traits, resulting from the cross of parents differing in two specific traits.

Genotype

The genetic constitution of an organism, determining specific characteristics by encoding instructions for proteins.

AaMm

Represents a genotype consisting of two different alleles, Aa, for one trait and two different alleles, Mm, for another trait, indicating a hybrid individual.