Some Evidence of a Biological Basis for Sexual Orientation Comes

question 53

Multiple Choice

Some evidence of a biological basis for sexual orientation comes from research that has found that

• A) female twins are more likely to become homosexuals than male twins.
• B) having an older brother increases the odds of homosexuality in later-born males.
• C) a gene associated with sexual preference has been identified by the researchers on the Human Genome Project.
• D) children first begin to self-identify as homosexual during the latency period.

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Definitions:

Endocrine System

The collection of glands that produce hormones to regulate processes such as growth, metabolism, and reproduction.

Pelvic Cavity

The body cavity situated within the pelvis that houses the reproductive organs, urinary bladder, and rectum.

Epidermal Barrier

The outermost layer of skin that provides a protective barrier against environmental hazards, pathogens, and prevents water loss.

Thoracic Cavity

A cavity in the body housing the lungs, heart, and other components of the respiratory and circulatory systems; located within the chest.