Question 1

Gay men report ________ interest in uncommitted sex and ________ interest in their partner's physical attractiveness than do lesbian women.

Accepted Answer

The answer of Gay men report ________ interest in uncommitted...

Question 2

Both a kin selection theory and an alternative "fertile females" theory have been used to explain the transmission of genes that promote

Accepted Answer

Kin selection theory and the "fertile females" theory have been proposed to explain the genetic transmission of traits associated with homosexuality. Kin selection suggests that genes promoting homosexuality may be passed on because homosexual individuals can help raise relatives' offspring, while the "fertile females" theory posits that genes linked to homosexuality may also enhance reproductive success in female relatives.

Question 3

Research suggests that the fraternal birth-order effect may be a result of

Accepted Answer

The fraternal birth-order effect refers to the observation that each older brother increases the likelihood that a male child will be gay. Research suggests that this effect may be due to maternal immune responses to a protein found in male brains that are produced by some women during pregnancy. As a woman carries more male fetuses, her body may become more adept at recognizing and attacking this protein, potentially affecting the development of the male brain in subsequent pregnancies.

Question 4

How would evolutionary psychologists explain men's more accepting attitude toward casual sex?

Accepted Answer

Evolutionary psychologists would explain men's more accepting attitude toward casual sex as a result of the biological imperative to distribute their genes as widely as possible. From an evolutionary perspective, men who have more sexual partners are more likely to pass on their genes to future generations, whereas women are limited by the amount of time and energy it takes to grow and nurture a child. Therefore, men are predisposed to seeking out multiple sexual partners, while women are predisposed to being more selective about their sexual partners.

Question 5

By manipulating a single gene, scientists have been able to control sexual orientation in

Accepted Answer

The manipulation of a single gene to control sexual orientation has only been studied and demonstrated in fruit flies. There is currently no evidence of such manipulation in humans or chimpanzees.

Question 6

Compared with women, men are ________ likely to feel comfortable about having casual sex with different partners and ________ likely to cite affection as a reason for their first sexual intercourse.

Accepted Answer

Research has shown that, compared with women, men are more likely to feel comfortable about having casual sex with different partners and less likely to cite affection as a reason for their first sexual intercourse.

Question 7

It has been suggested that women are genetically predisposed to be more cautious in their mate selection than men are because the birthing process is more time-consuming for women than for men. This best illustrates the logic of

Accepted Answer

The idea that women have evolved to be more cautious in their mate selection due to the higher investment necessary for reproduction aligns with the central tenets of evolutionary psychology, which seeks to explain human behavior in terms of adaptive evolution through natural selection.

Question 8

Brittla spends a lot of money on cosmetics and expensive clothing in order to attract a mate. Evolutionary psychologists would emphasize that this behavior is influenced by

Accepted Answer

Evolutionary psychologists would likely argue that Brittla's behavior is influenced by her genes, as they are interested in understanding how genetic predispositions may have influenced behaviors that were adaptive in our evolutionary past. In this case, investing in physical appearance may have been advantageous in attracting a mate and passing on one's genes.

Question 9

The hypothalamus lights up in an area governing sexual arousal when ________ are given a whiff of scent derived from men's sweat.

Accepted Answer

The hypothalamus, a region of the brain involved in sexual arousal among other functions, shows increased activity in straight women and gay men when exposed to male sweat, indicating a biological response to sexual stimuli related to sexual orientation.

Question 10

Women are most likely to be sexually attracted to men who seem

Accepted Answer

Research suggests that women are most attracted to mature and affluent men who have established social status and financial stability. These characteristics signal that the man may be a good provider and able to ensure the survival and well-being of any offspring. Shyness and emotional reactivity may be seen as less desirable traits and interest in casual sex may signal that the man is not interested in long-term commitment.

Question 11

In a study of Welsh pedestrians, women rated a man as ________ if he was pictured at the wheel of an expensive rather than an inexpensive car. Men rated a woman as ________ if she was pictured at the wheel of an expensive rather than an inexpensive car.

Accepted Answer

The answer of In a study of Welsh pedestrians, women...

Question 12

Research has found that an animal's sexual orientation can be altered by

Accepted Answer

Research has found that an animal's sexual orientation can be altered by manipulations of prenatal hormone conditions. For example, female rats that are exposed to higher levels of testosterone during fetal development show a greater preference for female partners as adults. Similarly, male rats that are exposed to lower levels of testosterone during prenatal development show a greater preference for male partners as adults. This suggests that hormones play a crucial role in the development of sexual orientation.

Question 13

Sex hormone levels experienced between the second and fifth months after conception are most likely to influence sexual orientation in later life due to their impact on

Accepted Answer

Sex hormones experienced during this time period have been shown to influence development of the brain's hypothalamus, which plays a role in sexual orientation.

Question 14

Compared with women, men are more likely to

Accepted Answer

Research has consistently shown that men are more likely than women to initiate sexual activity, think about sex, and make sacrifices to gain sex. These differences may be partly explained by evolutionary factors and societal norms.

Question 15

Simon LeVay discovered that a neural cluster located in the ________ was larger in heterosexual men than in homosexual men.

Accepted Answer

Simon LeVay conducted a study on postmortem brains and found that a neural cluster called the INAH3 in the hypothalamus was significantly larger in heterosexual men than in homosexual men.

Question 16

If pregnant sheep are injected with ________ during a critical period of fetal development, their female offspring will show homosexual behavior.

Accepted Answer

Injecting pregnant sheep with testosterone during a critical period of fetal development results in an imbalance of hormones in the female offspring, leading to increased brain masculinization and a greater likelihood of displaying homosexual behavior in adulthood.

Question 17

A birth-order effect seems to play a role in sexual orientation among

Accepted Answer

The answer of A birth-order effect seems to play a...

Question 18

Men in their ________ are most likely to be sexually attracted to women who are several years older rather than several years younger than themselves.

Accepted Answer

The answer of Men in their ________ are most likely...

Question 19

The maternal relatives of homosexual men produce ________ offspring than the maternal relatives of heterosexual men, and male homosexuality is more likely to be transmitted by genes from the ________ side of the family.

Accepted Answer

The answer of The maternal relatives of homosexual men produce...

Question 20

On mental rotation tasks, gays and lesbians have been observed to score ________ than heterosexual men and ________ than heterosexual women.

Accepted Answer

Studies have consistently found that on mental rotation tasks, gay men and lesbian women perform worse than heterosexual men and better than heterosexual women, thus the best choice is D.

Quiz 5: Sex, Gender, and Sexuality

Gay men report interest in uncommitted sex and interest in their partner's physical attractiveness than do lesbian women.