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
45
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.
【C17】
选项
A、smaller
B、larger
C、wider
D、narrower
答案
B
解析
形容词辨析题。由上半句出现的particular genes和下半句出现的span several genes可知,新研究的对象不再是以前的特定基因,而是更多的一些基因,即研究的模块“更大了”,故larger“更大的”为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/r207777K
0
大学英语四级
相关试题推荐
A、Moreworkasaninstructor.B、Ahighersalary.C、Alongervacationperiod.D、Aresearchassignment.AWhatdoesProf.Diannaoff
A、Hewon’tbeabletofinishtheworksoon.B、Thewomanmustwaitforalongtime.C、Hewillfinishthepapersoon.D、Thewoman
TheWriter’sLifeAsurveyofBritain’syouthfoundthatmanyaspire(立志)tobecomewriters.Theyclearlydon’tknowhowhar
Astudentmustattendacertainnumberofcoursesinordertograduate,andeachcoursewhichheattendsgiveshimacreditwhic
Ifyouweresupposedtobeatmyhouseat6:00p.m.fordinner,butyoucameat8:00p.m.,wewould【B1】______thinkyouwere
Whatevertheirchosenmethod,Americansbathezealously.Astudyconductedfoundthatwetakeanaverageof4.5bathsand7.5s
Oneresearchhasshownthatpublicschoolteachersreceivesalariesalmostthesameasprivatesectorworkerswhoscorethesame
HowGlobalWarmingWorksGasesintheEarth’satmosphereactlikeglassinagreenhouse-trappingheatandmakinglifeonEar
Duringsleep,thefatigueofthebodydisappearsandrecuperation(恢复)begins.Thetiredmindgathersnewenergy.Onceawake,th
随机试题
在开展“有趣的动物”这一主题时,我事先在自然角悄悄饲养了几只蜗牛,并投放了蜗牛壳等。周一一清早,孩子们陆续来园。不一会儿,活动室里便热闹起来,孩子们开始讨论起来“呀,有螺蛳”;“不是不是,这是蜗牛。螺蛳生活在河里的。”“怎么还有许多空的壳,蜗牛到哪里去了?
学历证书可以代替职业资格证书。()
用益物权不是()。
重症哮喘时,血气分析常显示()。
按管理主体分,建设项目管理不包括()。
统计用区划代码分为3段,第1段表示(),第2段表示街道、镇和乡,第3段表示居民委员会和村民委员会。[2014年初级真题]
某教师在讲完《白雪歌送武判官归京》之后,准备再给大家推荐几首边塞诗,以下诗作不合适的是()。
证明:当x≥0且n为自然数时∫0x(t一t2)sin2ntdt≤.
设y=y(x)由x2y2+y=1(y>0)确定,求函数y=y(x)的极值.
Surveysshowthat______lesssleepthanwethink,______toomuchsleepcouldevenharmourhealth.(北京大学2005年试题)
最新回复
(
0
)