Question 1

The idea that maternal genetics may explain the transmission of genes that promote homosexuality is expressed by

Accepted Answer

The theory that maternal genetics may explain the transmission of genes that promote homosexuality is known as the fertile females theory.

Question 2

Women are somewhat more likely than men to feel bisexual attractions.This best illustrates a gender difference in

Accepted Answer

Erotic plasticity describes the degree to which an individual's sexual orientation can be shaped and influenced by social, cultural, and situational factors. Research suggests that women tend to display greater levels of erotic plasticity than men, which may help explain why they are more likely to experience bisexual attractions.

Question 3

When shown erotic pictures of heterosexual couples,it can be expected that heterosexual men would tend to look ________ and heterosexual women would tend to look ________.

Accepted Answer

The answer of When shown erotic pictures of heterosexual couples,it...

Question 4

Julie,a 35-year-old physician,is lesbian.Her friend Cindy,a 38-year-old hospital administrator,is heterosexual.Julie and Cindy most clearly differ in their

Accepted Answer

Julie and Cindy differ in their sexual orientation, as Julie identifies as a lesbian while Cindy identifies as heterosexual. Erotic plasticity refers to the degree to which one's sexual orientation and attractions can change over time and across different situations, and is not a significant factor in this scenario. Refractory periods refer to the time period following orgasm during which an individual is physiologically incapable of experiencing another orgasm, and is also not relevant here. While the sexual response cycle refers to the physiological and psychological processes involved in sexual arousal and orgasm, it is not directly related to the difference between Julie and Cindy's sexual orientations.

Question 5

Homosexual men have more homosexual relatives on their ________ side of the family.More offspring are produced by the maternal relatives of ________.

Accepted Answer

The answer of Homosexual men have more homosexual relatives on...

Question 6

Which researcher found that sections of the hypothalamus are larger in heterosexual men than in homosexual men?

Accepted Answer

Simon LeVay found that sections of the hypothalamus are larger in heterosexual men than in homosexual men.

Question 7

Research on the causes of homosexuality suggests that

Accepted Answer

Research has shown that there is a strong genetic influence on sexual orientation. Studies on twins and family members have found that there is a higher likelihood of homosexuality being present in families, suggesting a genetic component to sexual orientation. Other factors such as hormonal influences during fetal development and environmental factors may also play a role, but genetic influence appears to be the most significant factor. Choices A, B, and C have been debunked by scientific research as causes of homosexuality.

Question 8

A homosexual orientation is viewed by most psychologists to be

Accepted Answer

Most psychologists view a homosexual orientation as neither willfully chosen nor willfully changed. The other options are not supported by research. Gender identity is a separate concept from sexual orientation, and the percentage of American males who identify as homosexual is estimated to be lower than 10 percent.

Question 9

Many species of animals have demonstrated same-sex sexual behavior.This suggests that

Accepted Answer

The fact that many species of animals demonstrate same-sex sexual behavior suggests that homosexual behavior is a natural part of the animal world. It is not solely due to environmental factors, as it is observed across various species. Similarly, it is not necessarily just as common as heterosexual behavior, as it may vary between species, but it is a natural behavior nonetheless. Contaminated water supplies are not a credible explanation for same-sex behavior among animals.

Question 10

How much variation in sexual orientation is due to genetic influences?

Accepted Answer

Studies of twins have suggested that genetic factors could account for about 33 percent of the variation in sexual orientation among men and women.

Question 11

Gender differences in sexual orientation are best illustrated by the fact that women

Accepted Answer

Research indicates that women's sexual orientation tends to be more fluid and changeable over time compared to men's. This suggests that women may experience shifts in their attractions and relationships more than men do.

Question 12

Estimates based on data from the U.S.National Center for Health Statistics suggests that ________ percent of the population is gay or lesbian.

Accepted Answer

The U.S. National Center for Health Statistics estimates that approximately 1.6 percent of adults in the United States identify as gay or lesbian.

Question 13

Seth and his two male cousins are homosexual.The two cousins are on his mother's side of the family,as would be predicted by a genetic explanation for homosexuality,called

Accepted Answer

The fertile female theory suggests that the same genetic factors that promote homosexuality in males may also promote fecundity (reproductive success) in the female relatives of those males, thus explaining the presence of homosexuality in males and increased fertility in their female relatives, such as Seth's mother and her side of the family.

Question 14

Women are ________ likely than men to report at least one same-sex sexual contact during their lives.The percentage of women who identify themselves as lesbian is ________ than the percentage of men who identify themselves as gay.

Accepted Answer

Studies show that women are more likely than men to report at least one same-sex sexual contact in their lives. However, the percentage of women who identify themselves as lesbian is lower than the percentage of men who identify themselves as gay.

Question 15

The fertile females theory has been used to explain the transmission of genes that promote

Accepted Answer

The fertile females theory suggests that genes promoting homosexuality in males could be passed down through generations because they also increase fertility in females. This theory is used to explain the genetic transmission of homosexuality, as these genes may confer reproductive advantages in female relatives, thereby maintaining the genes within the population despite potential reproductive disadvantages in homosexual males.

Question 16

Evidence that brain anatomy differences account for variations in sexual orientation is provided by the fact that these brain differences

Accepted Answer

Studies have found differences in brain structure and function between heterosexual and homosexual individuals, and these differences seem to develop early in life, possibly even before birth. These findings suggest that brain anatomy plays a role in sexual orientation. Choices A, B, and C are not supported by the evidence presented.

Question 17

When exposed to a scent derived from men's sweat,gay and straight men responded differently in the area of the ________ that governs sexual arousal.

Accepted Answer

The hypothalamus is the area of the brain that governs sexual arousal, among other functions. The study mentioned in the question found that gay and straight men responded differently in this area of the brain when exposed to a scent derived from men's sweat, indicating that sexual orientation may be linked to differences in brain activity. The cerebellum, motor cortex, and reticular formation are not directly related to sexual arousal or sexual orientation.

Question 18

In their genital responses to erotic videos,heterosexual women would be most likely to exhibit ________ than do heterosexual men.

Accepted Answer

Heterosexual women have been found to exhibit more bisexual attraction in their genital responses to erotic videos than do heterosexual men, showing arousal to both male and female sexual stimuli.

Question 19

Gina and Nanette are sisters and both are lesbians.According to the research on the origins of sexual orientation,it is highly likely that

Accepted Answer

None of these things are true. The origins of sexual orientation are complex and multi-factorial, and there is no single factor or set of factors that can definitively predict sexual orientation. Research suggests that a combination of genetic, hormonal, and environmental factors may play a role, but the exact mechanisms are still not fully understood.

Question 20

Identical twins are somewhat ________ than fraternal twins to share a homosexual orientation;however,________.

Accepted Answer

Identical twins are more likely than fraternal twins to share a homosexual orientation, but this does not mean that sexual orientation is solely determined by genetics. The fact that sexual orientation differs in many twin pairs suggests that other factors, such as environmental influences, must also play a role.

Quiz 5: Sex, Gender, and Sexuality