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
外语
Researchers report that obesity relates to DNA. Some children get obese【C1】______they lack particular chunks of DNA, which kicks
Researchers report that obesity relates to DNA. Some children get obese【C1】______they lack particular chunks of DNA, which kicks
admin
2013-06-17
41
问题
Researchers report that obesity relates to DNA. Some children get obese【C1】______they lack particular chunks of DNA, which kicks their hunger into overdrive.
The British researchers【C2】______the DNA of 300 children who’d become very fat by age 10. They found【C3】______that several rare deletions may promote obesity, including one kind they found in【C4】______than 1% of about 1 200 severely obese children. That【C5】______, on chromosome (染色体) 16, apparently causes trouble because it【C6】______a gene that the brain needs to【C7】______to the appetite-controlling hormone leptin (瘦体素), said Dr. Sadaf Farooqi of Cambridge University. Children with a chromosome 16 DNA deletion have a very strong【C8】______to eat.
The work has already produced a real-world【C9】______Farooqi said four children with the chromosome 16 deletion had【C10】______drawn the attention of British child welfare authorities, who blamed the parents【C11】______overfeeding them. "We were able to【C12】______" and get the parents of two children off the hook, and the other two cases are【C13】______discussion, she said. That’s happened before the scientists uncovered【C14】______causes for severe childhood obesity, she said. "It’s a slightly【C15】______outcome of our research, but one we think is very important," she said.
【C16】______scientists had previously discovered particular genes that promote obesity when damaged, the new work looked at【C17】______chunks of DNA that can span several genes.
Eric Ravussin, an obesity expert, who wasn’t【C18】______in the study, said the work provides "a gold mine of information". That’s because it【C19】______specific chromosome areas that scientists can explore to【C20】______obesity-related genes, he said.
【C14】
选项
A、legal
B、logical
C、likely
D、genetic
答案
D
解析
形容词辨析题。上文提到某种DNA的缺失造成肥胖的问题,也提到染色体16中特定DNA缺失的原因是控制食欲的基因被移除了,由此可推断,控制食欲的基因被移除导致了肥胖,故genetic“基因的”为本题答案,即“这在科学家揭示基因缺失引起儿童肥胖的奥秘之前已经发生了”。
转载请注明原文地址:https://kaotiyun.com/show/0207777K
0
大学英语四级
相关试题推荐
Joeisnotgoodatsports,butwhenit____________(一提到文学),heisthebestintheclass.
Mostpeoplewhotravellongdistancescomplainofjetlag(喷气飞行时差反应).Jetlagmakesbusinesstravelerslessproductiveandmorepr
TheWriter’sLifeAsurveyofBritain’syouthfoundthatmanyaspire(立志)tobecomewriters.Theyclearlydon’tknowhowhar
Manystudentsfindtheexperienceofattendinguniversitylecturestobeareallyconfusingand【C1】______experience.Thelecture
Manystudentsfindtheexperienceofattendinguniversitylecturestobeareallyconfusingand【C1】______experience.Thelecture
Researchershaveestablishedthatwhenpeoplearementallyengaged,biochemicalchangesoccurinthebrainthatallowittoact
A、Themanmustbeanexcellentstudent.B、Theman’sideaisprobablyagoodone.C、Themanhadbetterdropmorethanonecourse.
Todaymanypeoplearestarvingtodeath.【C1】______ashortageoffoodandthe【C2】______foodistooexpensiveforhungrypeopleto
Todaymanypeoplearestarvingtodeath.【C1】______ashortageoffoodandthe【C2】______foodistooexpensiveforhungrypeopleto
A、Hiking.B、Mountainbiking.C、Fishing.D、Travelingsomewhere.A该题答案出现在It’sgoingtobeawonderfuldayforhikingtomorrow这句中,
随机试题
下列关于缺铁性贫血的叙述,错误的是A.血清运铁蛋白饱和度<15%B.红细胞中央淡染区扩大C.铁蛋白<12μg/LD.血清总铁结合力减低E.血清铁降低
患者女,62岁。2年前不明原因颜面部及双下肢水肿,在当地疑为肾炎、冠心病予对症治疗无效,且症状渐加重,伴活动后心悸、气短、乏力、食欲减退、腹胀。病史中有情绪低落、反应迟钝、怕冷、脱毛表现。既往无高血压、心绞痛病史。入院查:体温36.4℃,血压130/70m
确诊侵蚀性葡萄胎和绒癌主要取决于
下列叙述不正确的是
A.全身单核巨噬细胞系统增生性反应B.正常肠黏膜上有孤立小脓肿及溃疡C.肠黏膜急性弥漫性渗出性炎症D.肠黏膜弥漫水肿及肠壁增厚E.小肠黏膜充血肿胀、松弛,表面有灰白糠皮状薄膜伤寒病变特点是
某预应力混凝土T梁桥遭受火灾后,开展检测评定,现场混凝土强度检除采用回弹外,还需进行取芯检测,最后修正得到混凝土强度,请根据相关条件回答下列问题。最后结构或构件混凝土强度应采用检测批的()。
某大型施工机械原值35万元,折旧年限为5年,预计年平均工作250个台班,预计残值率4%。该机械年实际工作280个台班,用工作量法计算的年折旧额为()元。
对看涨期权而言,若市场价格低于协定价格,期权的买方将放弃执行期权,为虚值期权。()
[2013年1月]△ABC的边长分别为a、b、c,则△ABC为直角三角形。(1)(c2一a2一b2)(a2一b2)=0;(2)△ABC的面积为。
A、B、C、D、E五个选项为判断结果,请选择一项符合试题要求的判断。A.条件(1)充分,但条件(2)不充分。B.条件(2)充分,但条件(1)不充分。C.条件(1)和(2)单独都不充分,但条件(1)和(2)联合起来充分。D.条件(1)充分,条件(2)
最新回复
(
0
)