TABLE OF CONTENTS

Chapter 1. Homosexuality: Nature or Nurture?

Human Development Video Activity
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You must read each slide, and complete any questions on the slide, in sequence.

Homosexuality: Nature or Nurture?

This clip explores the highly controversial question of whether a determinant for homosexuality can be discovered, and if so, is genetic makeup or environment the predominant factor in determining sexual orientation. Sets of twins are examined as case studies. Research explores genetic, prenatal, and nurturing components that may contribute to an individual’s sexual orientation.

Thumbnail Photo Credit: JGI/Jamie Grill/Getty Images

1.

1. According to the video, which of the following seems to be a strong childhood predictor of homosexuality later in life?

Correct! Childhood gender nonconformity is a strong predictor of homosexuality later in life, and choice of toys can be an example of gender nonconformity.
Incorrect. Childhood gender nonconformity is a strong predictor of homosexuality later in life, and choice of toys can be an example of gender nonconformity.

2.

2. How does Dr. Michael Bailey describe the older brother effect?

Correct! Dr. Michael Bailey describes the older brother effect as the more older brothers that a male has the greater his chance of being gay.
Sorry. Dr. Michael Bailey describes the older brother effect as the more older brothers that a male has the greater his chance of being gay.

3.

3. Why are twins important to researchers when exploring factors that contribute to sexual orientation?

Correct! Research on twins with different sexual orientations present real challenges for researchers and provide excellent opportunities for exploring how genetics, prenatal environment, and nurture all interact to create an individual’s sexual orientation.
Sorry. Twins with different sexual orientations present real challenges for researchers and provide excellent opportunities for exploring how genetics, prenatal environment, and nurture all interact to create an individual’s sexual orientation.

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