The following are all Issues and Sub-issues and Questions ("Q" in black). Collectively they map the content supporting our core question: "Is sexual orientation determined at birth?"

1. Background A. Defining Sexuality Q1. What is the difference between sexual orientation and sexual preference? Q2. How can sexual orientation be categorized? Q3. How does the Kinsey Scale relate to sexual orientation? Q4. What are the differences between transsexuality (sex change), intersexuality and transvestism (cross-dressing)? B. Determining Sexual Orientation Q1. What is the prevalence of people with same-sex attraction? Q2. Is there an age by when people realize their sexual orientation? Q3. Is same-sex attraction a phase some young people go through? C. Homosexuality in Animals Q1. What are some examples of same-sex behavior in animals? Q2. Is it relevant to look at the animal kingdom to determine if human same-sex behavior is "natural"? 2. Causes: Inborn (Nature) A. Gay Gene Q1. Is there a "gay" gene? Q2. Do studies conducted on homosexuality in twins show a genetic basis of homosexuality? B. Hormones and Antibodies Q1. Can hormones affect sexual orientation? Q2. Does the fraternal birth order effect demonstrate a biological basis to sexual orientation? C. Anatomical Differences Q1. Are there physical differences in the brains of heterosexuals and homosexuals? Q2. Is there a connection between sexual orientation and handedness? Q3. Is there a connection between sexual orientation and the ratio between second and fourth finger length? 3. Causes: Psychological (Nurture) A. Developmental Q1. Is homosexuality a mental disorder? Q2. Is homosexuality a developmental disorder? Q3. Is gender nonconforming behavior in children indicative of adult homosexual orientation? B. Parent and Sibling Relationships Q1. Does the fraternal birth order effect demonstrate a biological basis to sexual orientation? Q2. Can a child's relationship with his or her parents cause homosexuality? Q3. Are children who are raised by gay parents more likely to be gay themselves? C. Victims of Sexual Abuse Q1. Can childhood sexual abuse by a person of the same sex cause same-sex attraction? Q2. Are proportionally more incidents of child sexual abuse perpetrated by gays and lesbians than heterosexuals?

4. Causes: Other A. Gay Germ Theory Q1. Could a germ cause homosexuality? 5. Changing Sexual Orientation A. Ex-gays Q1. What are "ex-gays" and "ex-gay" (change) ministries? Q2. Can sexual orientation be successfully changed? B. Conversion Therapy Q1. What is "reparative" or "conversion" therapy? Q2. Does conversion therapy help people change their sexual orientation? Q3. Is therapy aimed at changing sexual orientation unethical? 6. Religious Considerations A. Buddhism Q1. Does Buddhism accept same-sex behavior? B. Christianity Q1. Does Christianity accept same-sex behavior? C. Hinduism Q1. Does Hinduism accept same-sex behavior? D. Islam Q1. Does Islam accept same-sex behavior? E. Judaism Q1. Does Judaism accept same-sex behavior? 7. Social and Legal Implications of the Origin of Sexual Orientation A. Discrimination Q1. Should society protect individuals from job discrimination based on their same-sex attraction? Q2. Should hate crime legislation include sexual orientation? Q3. What causes homophobia? Q4. Is homophobia a diagnosable psychological condition? B. Health Concerns Q1. Does homosexual behavior present more of a health risk than does heterosexual behavior? C. Gay-Straight Alliances Q1. What are "gay-straight alliances" and should they be allowed in public schools?