If There Is a Genetic Component to Sexual Orientation

question 24

Multiple Choice

If there is a genetic component to sexual orientation,

• A)there is no single gene determining sexual orientation.
• B)we will probably find that there is a single gene on the X chromosome.
• C)we will probably find that there is a single gene on the Y chromosome.
• D)we should see close to a 100% match in sexual orientation between identical twins.

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Definitions:

Sensory Adaptation

The process by which sensory receptors become less responsive to constant stimuli, allowing individuals to ignore background levels of stimulation.

Absolute Threshold

The smallest level of stimulus that can be detected by a sense, such as the faintest sound that can be identified.

Transduction

The process of converting one form of energy into another, such as converting light waves into neural signals by the sensory organs.

Absolute Threshold

The smallest intensity of a stimulus that can be detected by an organism's sensory systems 50% of the time.