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
2020-09-03
7
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.
According to a doctor, what makes people different in weight?
选项
A、The amount of food they take in.
B、The amount of time they spend on exercise.
C、The genes in their body.
D、The different lifestyles.
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/uEO7777K
0
大学英语四级
相关试题推荐
A、Repairtheirbicycles.B、Goonabicycletour.C、Takeatestaboutroadsafety.D、Participateinabicyclerace.B选项均以原形动词开头以及
A、Keepingitsfeatherswaterproof.B、Keepingitsfeatherscoolinsummer.C、Helpingcommunicatewiththesamespecies.D、Keeping
A、ThemeltingoftheentireglacierinGreenland.B、Themeltingofalltheglaciersintheearth.C、Thegrowthofcarbonemissio
Accordingtoarecentstudy,theideaofagingmightlookdifferentthroughtheeyesoflittlechildren.Agoodnumberofchildr
OnFoodSafety,aLongListbutLittleMoneyA)Thissummertherehasbeenadrumbeatoffood-relatedillnesses.Strawberries
OnFoodSafety,aLongListbutLittleMoneyA)Thissummertherehasbeenadrumbeatoffood-relatedillnesses.Strawberries
OnFoodSafety,aLongListbutLittleMoneyA)Thissummertherehasbeenadrumbeatoffood-relatedillnesses.Strawberries
A、Eatinglessunhealthyfood.B、Increasingphysicaleducationinschools.C、Advertisinglessforjunkfood.D、Decreasinginjurie
CreatingaHarmoniousFamilyForthispart,youareallowed30minutestowriteashortessayentitledCreatingaHarmonious
随机试题
______的创作以小说和人物传记最为著名。
阅读林海音《金鲤鱼的百裥裙》中的一段文字,回答问题:金鲤鱼自己觉得她该穿。如果没有人出来主张她穿,那么,她自己来主张好了。送走了龚嫂子回到房里,她就知道“金鲤鱼有条百裥裙”发出来的这句话,一定已经被龚嫂子从前头的门房传到太太的后上房了,甚至于
()时,不应设置空调。
下图为我国援建某国的港口工程,该港区的波浪玫瑰图各方向频率的径向长度比见图示,如下表所列:问题:画出主波向波浪破碎引起沿岸主输沙流的方向。
甲被宣告死亡后又重新出现,但其财产已被分割,甲不能要求返还的财产是( )。
某银行给甲企业在2011年度的贷款限额为5000万元,由于甲企业的管理层决策失误,致使企业遭受信用危机,于是银行方面拒绝承担贷款义务。此时,银行会承担法律责任。()
金融寡头在政治上对国家机器的控制主要是通过
粉笔,当它静静地躺着的时候,谁也不会(1)意到它,而每当老(2)拿起它,它便把(3)识送到我们面前。而它自己,直到全部被(4)成粉末,才停止奉(5)。
Spain’sThirdCitySeesWinteroffwithaBangIt’sMarchandI’minValencia,Spain’sthirdlargestcity,withmynewfrien
HowtoWriteContactDetailsinYourResume?Printyournameinlargelettersatthetopofthepage.Youdon’thavetowrit
最新回复
(
0
)