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单选题
OBese小鼠的特征表现为（）。
A
常染色体隐性多基因遗传。
B
纯合体和杂合体小鼠呈现肥胖症状。
C
给动物使用四氧嘧啶、链脲佐菌素也可改善肥胖症的症状。
D
血胰岛素水平升高，血糖含量升高。
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更多 “单选题OBese小鼠的特征表现为（）。A 常染色体隐性多基因遗传。B 纯合体和杂合体小鼠呈现肥胖症状。C 给动物使用四氧嘧啶、链脲佐菌素也可改善肥胖症的症状。D 血胰岛素水平升高，血糖含量升高。” 相关考题
考题
杂交瘤技术应用的2种细胞是A、免疫的小鼠脾细胞和免疫的小鼠骨髓瘤细胞B、免疫的小鼠脾细胞和小鼠骨髓瘤细胞C、小鼠脾细胞和小鼠骨髓瘤细胞D、小鼠脾细胞和免疫的小鼠骨髓瘤细胞E、免疫小鼠脾细胞和小鼠骨髓细胞
考题
Questions 88-90 refer to the following advertisement.
Obese people are less productive in the workplace and more prone to injury, a study claims. The researchers say their findings were so extreme that overweight people may need to take longer breaks to recover from the strains of work. They assessed how long it took for people of various sizes to perform certain tasks in the workplace. Obese people had, on average, 40 per cent shorter endurance times.
The study, conducted at Virginia Tech and the University at Buffalo in the U.S., examined the endurance of 32 people in four categories: non-obese young, obese young, non-obese older, and obese older. Each of them completed three tasks that involved a range of skills: hand grip, shoulder elevation, and a simulated assembly operation. Every task involved periods of work and rest, and included a level of activity similar to manufacturing settings.
The number of people who are obese has doubled over the past three decades-and has been linked to higher rates of workplace injury and a greater number of days of sick. ‘Workers who are obese may need longer rest breaks to return to their initial state of muscle function,’ said Dr Cavuoto. Based on the increased fatigue found
among workers who are obese, workplace designers may need to consider adding fixtures and supports to minimize the amount of time that body mass segments need to be supported. ‘We believe our results will help to develop more inclusive ergonomic guideline,’ she added. The researchers also looked at the effect of obesity and age on endurance times.
Previous research has indicated that both age and obesity hamper mobility-particularly when it comes to walking and low-energy tasks. But the researchers in this study, published in the Journal of Occupational and Environmental Hygiene, found no such link.
What is the finding supported by the previous study but not the present study?
A. Obese people are less productive in work
B. Obese people find it hard to recover from strain
C. Obese people are more likely to get injured
D. Obese people suffer from poor mobility
考题
Questions 88-90 refer to the following advertisement.
Obese people are less productive in the workplace and more prone to injury, a study claims. The researchers say their findings were so extreme that overweight people may need to take longer breaks to recover from the strains of work. They assessed how long it took for people of various sizes to perform certain tasks in the workplace. Obese people had, on average, 40 per cent shorter endurance times.
The study, conducted at Virginia Tech and the University at Buffalo in the U.S., examined the endurance of 32 people in four categories: non-obese young, obese young, non-obese older, and obese older. Each of them completed three tasks that involved a range of skills: hand grip, shoulder elevation, and a simulated assembly operation. Every task involved periods of work and rest, and included a level of activity similar to manufacturing settings.
The number of people who are obese has doubled over the past three decades-and has been linked to higher rates of workplace injury and a greater number of days of sick. ‘Workers who are obese may need longer rest breaks to return to their initial state of muscle function,’ said Dr Cavuoto. Based on the increased fatigue found
among workers who are obese, workplace designers may need to consider adding fixtures and supports to minimize the amount of time that body mass segments need to be supported. ‘We believe our results will help to develop more inclusive ergonomic guideline,’ she added. The researchers also looked at the effect of obesity and age on endurance times.
Previous research has indicated that both age and obesity hamper mobility-particularly when it comes to walking and low-energy tasks. But the researchers in this study, published in the Journal of Occupational and Environmental Hygiene, found no such link.
Which of the following statements is true according to the article?
A. The subjects of the study are of all ages
B. The number of obese people has been on the increase
C. The tasks involved takes place in real work situation
D. The study has lasted over three decades
考题
一种由LCMV引起的人和多种动物共患的病毒性疾病。小鼠感染表现为大脑型、内脏型和迟发型3种病型；人类感染主要表现为流感样症状和脑膜炎的疾病是小鼠（）A、淋巴细胞性脉络丛脑膜炎B、鼠痘C、仙台病毒感染D、鼠肝炎
考题
单选题kk小鼠可能与人糖尿病的多样性相对应的原因是（）A
kk小鼠的基因突变频率较高。B
kk小鼠的糖尿病症状与环境无关，主要由遗传控制。C
kk小鼠的糖尿病性变化受多基因控制。D
kk小鼠的糖尿病症状主要表现为胰岛素非依赖特性。
考题
单选题小鼠感染呼肠病毒III型多呈隐性感染，症状表现为（）。A
引起小鼠肺炎，影响繁殖率。B
乳小鼠可见脂肪性下痢。C
人兽共患，严重致脑膜炎，感染胎儿，致流产。D
可引起神经症状，肢体麻痹、瘫痪。
考题
单选题杂交瘤技术应用的2种细胞是（）。A
免疫的小鼠脾细胞和免疫的小鼠骨髓瘤细胞B
免疫的小鼠脾细胞和小鼠骨髓瘤细胞C
小鼠脾细胞和小鼠骨髓瘤细胞D
小鼠脾细胞和免疫的小鼠骨髓瘤细胞E
免疫小鼠脾细胞和小鼠骨髓细胞
考题
单选题如果亚致死量X射线照射小鼠，用同基因预经OVA免疫小鼠的T细胞重建免疫功能，并用同基因预经DNP免疫的小鼠的B细胞重建，然后用DNP-BGG攻击注射，7天以后.你预计会发现为何物的抗体？（ ）A
BGGB
DNPC
OVAD
BGG和DNPE
OVA.BGG和DNP
考题
问答题裸小鼠主要特征有哪些？
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