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
A、It only works when the organism has sufficient fatty tissues. B、How and when the gene has changed is still unknown. C、It is na
A、It only works when the organism has sufficient fatty tissues. B、How and when the gene has changed is still unknown. C、It is na
admin
2021-01-08
25
问题
Public interest was aroused by the latest discovery of a changed gene in obese mice. The news was made known by Rockefeller University geneticist Jeffrey Friedman. The researchers believe this gene influences development of a hormone that tells the organism how fat or full it is. Those with the changed gene may not sense when they have eaten enough or if they have sufficient fatty tissue, and thus can’t tell when to stop eating. The researchers also reported finding a gene nearly identical to the mouse obesity gene in humans. The operation of this gene in humans has not yet been demonstrated, however. Still, professionals like University of Vermont psychologist Esther Rothblum reacted enthusiastically. This research indicates that people really are born with a tendency to have a certain weight, just as they are to have a particular skin color or height. Actually, behavioral geneticists believe that less than half of the total weight variation is programmed in the genes, while height is almost entirely genetically determined.
Whatever role genes play, Americans are getting fatter. A survey by the Center for Disease Control found that obesity has increased greatly over the last 10 years. Such rapid change underlines the role of environmental factors, like the abundance of rich foods in Americans’ overeating. The Center for Disease Control has also found that teens are far less physically active than they were even a decade ago. Accepting that weight is predetermined can relieve guilt for overweight people. But people’s belief that they cannot control their weight can itself contribute to obesity.
Questions 12 to 15 are based on the passage you have just heard.
12. What does the speaker say has aroused public interest?
13.What do we learn about the changed gene?
14.What does University of Vermont psychologist Esther Rothblum say?
15.What accounts for Americans’ obesity according to a survey by the Center for Disease Control?
选项
A、It only works when the organism has sufficient fatty tissues.
B、How and when the gene has changed is still unknown.
C、It is named after the geneticist Rockefeller.
D、It renders mice unable to sense when to stop eating.
答案
D
解析
细节辨认题。短文中提到,拥有这种变异基因的老鼠可能无法感知自己已经吃饱了或者已经有了足够的脂肪组织,所以无法知道何时停止进食。因此答案为D)。
转载请注明原文地址:https://kaotiyun.com/show/AKP7777K
0
大学英语六级
相关试题推荐
IsitanywonderthatAmericaisalsoacountryofdangerouslyoverweightpeople?AccordingtoarecentstudybytheNationa
Smokersinthe"landofthefree"arefindingthemselvesincreasinglylessfreetopursuetheirhabit.NewYorkCityofficialsa
GermanChancellor(首相)OttoVonBismarckmaybemostfamousforhismilitaryanddiplomatictalent,buthislegacy(遗产)includesman
AstudyconductedbyanAustralianscienceagencyhasdiscoveredsignsthatthecountry’sancientAboriginesmayhavebeenthew
南京是中国东部重要的政治、文化和金融中心。自三国时期(theThreeKingdomsPeriod)开始,先后有六个朝代在此建都,因此南京有“六朝古都”(theAncientCapitalofSixDynasties)的美誉。南京城建于明朝
A、Shedoesnothavetoomuchmoney.B、It’scoolduringthesummerholidayintheUS.C、Therearedifferentsceneriesandplaces
A、AbilitytocombinetechnologyandentertainmentB、Abilitytomakeeverystoryaslongaspossible.C、Abilitytofindfamousac
DuringthenextseveralweeksIwentcompletelytothewolves.Itookatinytentandsetitupontheshoreofbay.Thebigtel
DuringthenextseveralweeksIwentcompletelytothewolves.Itookatinytentandsetitupontheshoreofbay.Thebigtel
A、Designingfashionitemsforseveralcompanies.B、Modelingforaworld-famousItaliancompany.C、WorkingasanemployeeforFer
随机试题
腰椎间盘突出症和腰椎椎管狭窄症的主要鉴别点为
骨折移位的发生因素有()。
酶介质交叉配血试验中酶的作用,不包括
目前治疗中度原发性甲状腺功能亢进的常用而有效的疗法是
A.急性多发性神经根神经炎B.急性脊髓炎C.周期性瘫痪D.重症肌无力E.帕金森病
治疗支原体肺炎热闭心神证,应首选()
呋塞米可引起氨甲苯酸过量可引起
某代表团有756名成员.现要对A、B两议案分别进行表决,且他们只能投赞成票或反对票。已知赞成A议案的有476人,赞成B议案的有294人,对A、B两议案都反对的有169人。则赞成A议案且反对B议案的有()。
1840年至1919年的80年问,中国人民为反对外来侵略进行了英勇斗争,但都失败了,从中国内部因素来分析,其根本原因是
Tomanyvisitorstoacountrytheword"city"meansthecapitalcity.Andthatinitsturnmeanswhatwouldbetakeninbyagro
最新回复
(
0
)