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
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Othe
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Othe
admin
2019-04-27
80
问题
It often seems that some possess superhuman eating powers, allowing them to down an entire pizza while remaining rail-thin. Others only need to think of a slice and gain five pounds. Now one doctor says there’s evidence that genetics could be behind some of these differences. Regardless of how much you eat, your weight may be out of your hands.
Vann Bennett, a biochemist at Duke University and his team led a new investigation and discovered why this happens. They engineered mice to have several common modifications of the gene found in humans. They observed that mice who had mutations of ankyrin-B took more glucose (葡萄糖) into their fat cells, which in turn made more fat. Typically, the cell membrane (膜) acts as a barrier to prevent glucose from entering these cells: the alteration kept the gate open.
The change may serve a useful purpose. "Probably this is not always a bad thing," Bennett told Newsweek. "It could help people survive famines in the past. But today we have so much food that it probably is a bad thing." Our modern diets of fast food drive-thru windows and aisles of packaged snacks make the alteration work against us.
Dieters have long been told to watch their calories and exercise more, but this new finding suggests that a blanket approach doesn’t work for everyone. And the study illustrates a common problem for people: increased weight gain as a function of age. Our metabolism naturally slows with age, making it harder to maintain the weight of our 30-year-old selves when we’re 50. Now add an unruly ankyrin-B gene, and it may seem impossible to stay slim.
The mice in the study gained more weight when on high-fat diets. Bennett believes this is because once the fat cells received the glucose and start making more fat, they become sensitive to other fat. Despite being studied in mice, the researchers believe further research on this gene, and possibly others, could potentially create a field of customized diets and health plans based on genetics. Bennett envisions such assessments being performed at birth one day. For now, frustrated dieters can take comfort with one saying: It’s not you, it’s your genes.
What is the prospect of further research?
选项
A、It may help people to maintain the perfect weight.
B、It may change many new-born babies’ gene arrangement.
C、It may present human beings with a series of health plans.
D、It may provide more comfort for the frustrated dieters.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/lVZ7777K
0
大学英语四级
相关试题推荐
A、Theuser’sposition.B、Thespeedofthesatellites.C、Thedistancetodestination.D、Theinformationtotheearth.A根据录音最后一句“一
A、Torecallsomeone’snameandtitle.B、Toarrangethenextmeeting.C、Torecordthemeetingoneisattending.D、Topromoteunde
Ifchildrencouldstepintotheshoesofavictimofbullying,wouldtheybelesslikelytopushothersaround?That’sthehope
7SecretTestsofAttractionA)You’reasmart,attractiveperson.Soyouwouldn’tbesurprisedifoneofyourfriendsgottheh
ForoverthreedecadesIntelhasbeenprovidingSemi-conductorchipsforcomputerhardwaremakersaroundtheworld.Intel’schip
A、Itdidn’tdoenoughtocelebratethe100thanniversaryofWWI.B、ItshowedlittlerespecttootherEuropeancountries.C、Itte
A、Extremelyhighcrimerates.B、Troubledhighereducation.C、Limitednaturalresources.D、Poorgovernmentstability.B题目询问新闻的主题。
A、Itmadesome3DTVprograms.B、Itmademoreinterestingmovies.C、Itmadesome3Dmovies.D、Itsoldticketsatlowerprices.C
A、Hiscareless.B、Hisimpatience.C、Hisaspirationforexcitement.D、Hisbraveness.B
A、Stevenson’sauthority.B、Stevenson’sself-confidence.C、Stevenson’sgenerosity.D、Stevenson’struthfulness.D原文最后说到,年轻夫妇有感于史蒂文
随机试题
道德作用的范围与法律相比________。
休克代偿期,受损最重的脏器是
A.生理盐水B.0.3%过氧化氢溶液C.2%碳酸氢钠溶液D.1:5000高锰酸钾溶液高锰酸钾中毒的洗胃液宜选用
下面哪项关于肩难产的定义是正确的
城市建设用地的坡度不能小于()。
计算机中的“数据”是一个广义的概念,包括数值、文字、图形、图像、声音等多种形式。()
优秀运动员的成功,往往要追溯到启蒙教练的培养,这说明教师劳动具有()。
外国人在中华人民共和国领域外对中国公民犯罪,适用中国刑法的必要条件有()。(2012一法专一21)
D.H.LawrenceisoneofthegreatestEnglishnovelistsofthe20thcentury,and,perhaps,thegreatestfromaworking-classfam
(91)Inthelastfewyearstheconventionalwisdomhasbeenthattheadventofthenewmediawillhastenthedemiseofprint,an
最新回复
(
0
)