What Is the Concordance Rate of Homosexuality in Identical Twins

question 29

Multiple Choice

What is the concordance rate of homosexuality in identical twins?

• A)10-20%
• B)30-40%
• C)50-60%
• D)70-80%

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Definitions:

Sexual Relationship

An intimate relationship between individuals that involves sexual activity.

Optimal Mating Strategy

A concept in evolutionary psychology that suggests individuals select mates in a way that will maximize their reproductive success and enhance the survival and quality of their offspring.

Parental Investment

signifies any investment by a parent in an individual offspring that increases the offspring's chance of surviving (and hence reproductive success) at the cost of the parent's ability to invest in other offspring.

Evolutionary Perspective

A theoretical approach in psychology and other sciences that explores how evolutionary theory informs our understanding of human behaviors and mental processes.