logo - 刷刷题
下载APP
【简答题】

Passage Two Questions 6 to 10 are based on the following passage. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace> In the Science study, researchers from the University of Wisconsin at Madison, King's College in London, and the University of Otago in New Zealand yzed the type of 5-HTT gene carried by 847 s in New Zealand who were part of a long-term health study. There are two forms of the 5-HTT gene, the long and the short. An individual can inherit two copies of the long form, two of the short, or one of each. The researchers focused on subjects in the study who had had traumatic ( 有创伤的 ) life s over a five-year period. These s could include such things as a death in the family, a marriage breakup or the loss of a job. Patients with at least one copy of the short form of 5-HTT were more at risk of depression, the study found, suggesting that this form of the gene caused a heightened sensitivity to emotional stress. Patients with only the long 5-HTT gene were more resistant to depression following serious emotional s and tolerated stress better. Depression was diagnosed in about 33 percent of the study subjects who had at least one short 5-HTT gene copy and who had experienced four traumatic s over a five-year period. Among those with two copies of the long form of 5-HTT, only 17 percent were diagnosed with depression after four traumatic s. Researchers said tests showed that those with even one copy of the short 5-HTT gene were almost three times more likely to think or attempt suicide than those with only the long 5-HTT. Experts said the difference in the forms of the 5-HTT gene is not in the proteins they produce, but in the regulation of serotonin ( 血清素 ), a neurotransmitter that carries signals between nerve cells. The short version of 5-HTT is not as effective in controlling the serotonin flow as is the long version, he said. 6. The study on 5-HTT gene _____. A) was based on a five-year basis B) studied 847 men in New Zealand C) was carried out by New Zealand scientists D) focused on the insane people 7. The subjects of the study _____. A) were abnormal B) all suffered from emotional stress C) were from different countries D) had more short form of 5-HTT 8. The study showed that _____. A) the short form of 5-HTT caused stronger response to traumatic life s B) more subjects were very sensitive to any emotional stress C) there were three types of 5-HTT genes D) people with one long 5-HTT gene were the most resistant to depression 9. Subjects who had at least one short 5-HTT gene copy _____. A) were almost three times more likely to think or attempt suicide than those with only the long ones B) accounted for more than 30% of the subjects C) accounts for about 17% of the subjects D) were more sensitive to depression than those who had only the long ones 10. The study showed that the 5-HTT genes are different in _____. A) their weight B) the proteins they produce C) the regulation of serotonin D) the nerve cells

题目标签:清素血清素
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】属于血清素和去甲肾上腺素再摄取抑制剂的减肥药是()

A.
芬氟拉明
B.
安非拉酮
C.
甲状腺素
D.
西布曲明
E.
奥利司他

【单选题】Factors for Stress and Anxiety At some point in their lives virtually everyone will experience stressful events or situations that overwhelm their natural coping mechanisms. In one poll, 89% of respo...

A.
have an aggressive and anti-social mother
B.
fail to build a sound relationship with pals
C.
get into a new school environment
D.
fail to pass an important school test

【单选题】Depression isn't just feeling down.It's a real illness with real causes.Depression can be set off by stressful life events, like divorce or a death in the family or it can appear suddenly, for no appa...

A.
a mental state that can be overcome without medicine
B.
an illness that no medicine can cure
C.
an experience everyone has in his life time
D.
something you can avoid by leading a happy life

【单选题】Factors for Stress and Anxiety At some point in their lives virtually everyone will experience stressful events or situations that overwhelm their natural coping mechanisms. In one poll, 89% of respo...

A.
two persons with different characteristics work together
B.
a person always recalls past painful experience
C.
a person has just get over a serious physical disease
D.
parents abuse their children too much in early nurturing

【单选题】血清素和去甲肾上腺素再摄取抑制剂

A.
芬氟拉明
B.
西布曲明
C.
奥利司他
D.
地西泮
E.
左甲状腺素以上药物按药理作用分类为