首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
自考
The transplantation of functioning human immune systems into mice was reported by two California research teams in September 198
The transplantation of functioning human immune systems into mice was reported by two California research teams in September 198
admin
2022-08-24
45
问题
The transplantation of functioning human immune systems into mice was reported by two California research teams in September 1988. The mice should have many important uses in medical science such as enabling researchers to test treatments against a number of diseases and to study the effects of infectious microorganisms—including the AIDS virus—on the human immune system. Both research groups at the Medical Biology Institute in La Jolla and at Stand ford University— started with a special strain of mice that are without an immune system. The La Jolla scientists injected the mice with human B cells and T cells, white blood cells that are major components of the immune system. The cells reproduced in the mice’s bodies and migrated throughout the animals’ circulatory systems. The Stanford researchers implanted human fetal liver tissues, thymus gland tissues, and lymph nodes, into the mice. In the mice’s bodies, the liver cells produced stem cells, which develop into the various kinds of blood cells. The implanted tissues converted the stem cells into B cells and T cells. The mice with immune system transplants by both research teams were fully protected against infectious disease. Ordinarily, mice of the strain used by the scientists die soon after birth unless they are kept in a sterile(无菌的)environment.
The purpose of the researches in those two universities was to______.
选项
A、use mouse blood to treat many diseases
B、use human blood to cure sick mice
C、find out how human immune system might be affected
D、find out if human immune system was similar to that of mice
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/jDPR777K
本试题收录于:
电子商务英语题库经管类分类
0
电子商务英语
经管类
相关试题推荐
苹果手机推出升级版本属于()
试述差异化战略的优势和风险。
竞争者在目标市场的销售份额是()
成立于1984年的长城汽车公司,在短短30年的时间内就成长为国内规模最大的皮卡、SUV专业厂商、跨国公司。对于这样的表现,长城汽车人将其归功于多年来实施的“聚焦战略”。长城汽车董事长魏建军曾对媒体表示,聚焦的作用,就在于把有限的资源用在集中的领域。其
Humanbeingsactinadifferentwayfrom【C1】______ofanimalsjustbecausetheycanspeakwhileanimalscannot.【C2】______theclev
Humanbeingsactinadifferentwayfrom【C1】______ofanimalsjustbecausetheycanspeakwhileanimalscannot.Eventhecleveres
Inatelephonesurveyofmorethan2000adults,21%saidtheybelievedthesunrevolved(旋转)aroundtheearth.An【C1】______21%di
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestudyofthesea".Beforethenineteenthcenturysc
Therearefivebasicfunctionsofanewspaper;toinform,tocomment,topersuade,toinstructand【C1】______Youmaywellthinkt
随机试题
企业经营哲学
中国人民志愿军司令员兼政治委员是
下列哪项是一期愈合的特点()
出生时并不存在以后逐渐出现且永不消失的神经反射是
患者诸虚不足,身常汗出,夜卧尤甚,久而不止,心悸惊惕,短气烦倦,治宜用
某乳品生产企业,因生产工艺要求需要对本成品进行冷却,建有以液氨作为制冷剂的制冷车间,内设一台容积为10m3的储氨罐。为防止液氨泄漏事故发生,该企业对制冷工艺和设备进行改进,更换了一种无害的新型制冷剂,完全能够满足生产工艺的要求,该项措施属于防止事故发生的
成品返修率属于生产计划指标中的()指标。
假设某个小镇有两个行业,一个生产服装,另一个生产钢铁。服装行业的产出函数为yC=LC钢铁业的产出函数为yS=24PS0.5-2LS,其中LC和LS分别是服装业和钢铁业的工人数,小镇中所有居民都会到其中一个行业中工作,居民的总人数为25,假设两个行业都是竞争
试述现代学校管理的发展趋势。
循环经济主要有三大原则,即________原则、________原则和原则。
最新回复
(
0
)