首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
财务会计
根据下面资料,回答题 I′ve often wondered how exa
根据下面资料,回答题 I′ve often wondered how exa
恬恬
2019-12-17
51
问题
根据下面资料,回答题 I′ve often wondered how exactly sleep, or lack of it, can have such an awful effect on our bodies and, guess what, how much we sleep switches good genes on and bad genes off. In the first half of 2013, the Sleep Research Centre at the University of Surrey found a direct link between hours spent sleeping and genes. Every cell in our bodies carries genetic instructions in our DNA that act as a kind of operating handbook. However, each cell only "reads" the part of this handbook it needs at any given moment. Can sleep affect how a gene reads instructions It′s a question asked by Professor Derk-Jan Dijk at the University of Surrey. He set up an experiment and asked his volunteers to spend a week sleeping around seven and a half hours to eight hours a night and the next sleeping six and a half to seven hours. Blood samples were taken each week to compare which genes in blood cells were being used during the long and short nights. The results were rather surprising. Several hundred genes changed in the amount they were being used, including some that are linked to heart disease, cancer, and Type 2 diabetes. Genes to do with cell repair and replacement were used much less. Sleep restriction (six and a half to seven hours a night) changed 380 genes. Of these,220 genes were down regulated (their power was reduced), while 160 were up regulated (their power was increased). Those affected included body-clock genes which are linked to diabetes. One of the most downgraded genes is that which has a role in controlling insulin and is linked to diabetes and insomnia. The most upgraded gene is linked to heart disease. So changing sleep by tiny amounts can upgrade or downgrade genes that can influence our health and the diseases we suffer from when we sleep too little. The important message is that getting close to eight hours of sleep a night can make a dramatic difference to our health in just a few days through the way it looks after our genes. Which of the following may be concluded from the passage 查看材料
选项
A.The experiment was performed at the University of Surrey in early 2013.B.Body-clock genes are associated with heart disease, cancer and Type 2 diabetes.C.Sleep restrictions may contribute to disease like diabetes, insomnia, and heart disease.D.7.5-8 hours' sleep pattern makes little difference compared with 6.5-7 hours' sleep pattern.
答案
C
解析
推断题。根据第五段内容可知,睡眠时间不足可能引起人体基因的变化,而这些基因变化可以导致人体某些病症的产生,如糖尿病、失眠症、心脏病等,故C项正确。文章第二段的第一句话中虽然提到了“In the first half of 2013”和“at the University of Surrey”.但这里指的是英国萨里大学睡眠研究中心的一项发现,而不是指后来Derk-Jan Dijk教授所进行的实验,故A项不正确。文中提到了body-clock genes(控制生物钟的基因)与糖尿病有关,并没有提到它们和其他疾病的关系,故B项不正确。根据倒数第二段“So changing sleep by tiny amounts Can upgrade or downgrade genes that Can influence our health…”及最后一段“The important message is that getting close to eight hours of sleep a night Can make a dramatic difference to our health…”可知D项不正确。故本题选C。
转载请注明原文地址:https://ti.zuoweng.com/ti/scUsKKKQ
相关试题推荐
意识包括意识内容和觉醒状态两个组成部分,意识内容障碍是下面哪部分中枢神经系统病变
男性,40岁,体检发现空腹血糖6.4mmol/L,此病人应首选下面哪项检查确诊
关于食管下段括约肌(LES)的结构与功能,下面哪些说法是不正确的
下面描述与汉坦病毒特征不符的是
下面关于CURB-65评分的内容,哪项不正确
下面关于开瓣音的特点,不正确的是
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项
2006—2014年我国能源消费总量及构成 根据材料,下列表述正确的是:
根据美国加州大学圣迭戈分校的最新研究结果显示,一个人孤独不在于到底拥有多少亲密的
把下面的六个图形分为两类,使每一类图形都有各自的共同特征或规律,分类正确的一项
随机试题
下列关于商业银行对贷款担保状况分析的表述,错误的是( )。[2014年11月真
24、A.清热解毒、息风止痉 B.清热解毒、祛瘀止痛 C.清热燥湿、止痒
不同法律之间对同一事项新的一般规定与旧的特别规定不一致的,应由()裁决。[200
中学生吴某(15岁)携带管制刀具上学,不时威胁其他同学,屡教不改。由于其父母已逝
A.慢性非特异性炎性疾病 B.慢性炎性肉芽肿性疾病 C.两者均不是 D.两
当测量区域的半径小于5公里时,可将地面视作水平面。()
竞争性营销战略的类型包括()。 A.市场领导者战略 B.市场开拓者战略
颌面部间隙感染最常见的病原菌是()A.金黄色葡萄球菌B.厌氧菌C.肺炎球菌D.绿脓杆菌E.溶血性链球菌
蒽环类抗生素容易引起心脏毒性,可以采用的预防药物是A.维生素.辅酶QB.糖皮质激素C.肾上腺素D.抗组胺药E.葡萄糖酸钙
关于竣工技术预验收,以下说法正确的是(??)。A.工程竣工技术预验收时,工程主要建设内容已按批准设计全部完成B.讨论并形成竣工验收鉴定书初稿C.工程竣工技术