Which of the following organic explanations has been offered to explain the fraternal birth-order effect?
a. The fraternal birth-order effect has no organic explanation. It is simply a trend that has not been shown to have any real evidence or relevance to the discussion of sexual orientation.
b. The Y-chromosome activates a gene more forcefully in each consecutive male birth, which is why this order effect applies to male and not female babies.
c. The rules of biology state that the only way for two boys to be born consecutively is if there is a genetic mutation. This mutation is thought to explain the fraternal birth-order effect.
d. There is a defensive maternal immune response that is triggered by foreign substances produced by each additional male fetus, and this immune response increases with each additional male pregnancy.
Answer: D
You might also like to view...
Dr. Nenning is a psychotherapist who is extremely supportive of all his clients. He encourages his clients to talk about their concerns, and he often acts as a sounding board, restating and clarifying the themes that come to the surface as his clients speak freely about their concerns and problems. Dr. Nenning appears to be
a. a therapist who uses a modern psychodynamic approach. b. a therapist who uses Beck's cognitive approach to therapy. c. a therapist who uses existential therapy methods. d. a client-centered therapist.
Four students in sociology class received a D on their final project and are required to rewrite and resubmit it. In their responses to this situation, who exemplifies the attribution style that is most prone to depression??
a. ?Gina, who feels that she never does well on written assignments and that she’s just not good at sociology b. ?Colin, who thinks this assignment was silly and that overall his grade point average will be fine c. ?Beth, who realizes that the flu really hampered her thinking on this project and that she can do better on the rewrite d. ?Bill, who realizes that he did not put enough time into the project and that he needs to allocate his time better during finals week
Women score LOWER than do men on:
A) conscientiousness. B) openness to feelings. C) extraversion. D) sensation seeking.
Females' immediate reaction to stressful situations has been described as
a. fight or flight. c. leave or believe. b. tend and befriend. d. stop and start