首页
登录
职称英语
When Louise Brown was born on 25 July 1978, she kicked off an era. The first
When Louise Brown was born on 25 July 1978, she kicked off an era. The first
游客
2024-01-31
22
管理
问题
When Louise Brown was born on 25 July 1978, she kicked off an era. The first "test tube baby" is a mother herself now, and she’s been joined by millions of others born with the【C1】______ of in vitro fertilization (体外受精), or IVF. Now specialists wonder whether people who were conceived by IVF are likely to be【C2】______ .
"By and large, the kids are just fine. It’s not like the kids having【C3】______ arms or heads," says Carmen Sapienza, a scientist at Temple University. But none is older than their early 30s, and the vast【C4】______ are under the age of 20, so they haven’t had time for long-term health problems to show up.
One source of worry is that so many IVF babies have low birth weight. Children-conceived through IVF are more likely to【C5】______ less than 2.5 kilograms than are babies conceived【C6】______ . That could spell trouble ahead, because low-birth-weight babies often have long-term health problems. They’re more likely to be obese, to have diabetes (糖尿病) or other problems.
With that in mind, Sapienza and colleagues have looked at genes that are likely to play a role in such health problems. They found that certain DNA-patterns, which affect how genes are【C7】______ , are different between IVF and non-IVF children. There’s no way to tell if that’s because of the【C8】______ used to produce the IVF babies or whether the difference has something to do with the underlying infertility problem the parents had. It’s also【C9】______ whether these gene-expression differences will translate into health differences. But it does suggest that children conceived by IVF are【C10】______ on some level.
A) weigh E) unclear I) unique M) majority
B) technology F) naturally J) healthy N) minority
C) help G) expressed K) explained O) completely
D) unsure H) procedure L) extra [br] 【C7】
选项
答案
G
解析
are后面要接动词过去分词形式表被动,在宾语从句中作谓语动词。下文出现的gene-expression很好地提示此处应选expressed。
转载请注明原文地址:https://tihaiku.com/zcyy/3409757.html
相关试题推荐
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
WhenLouiseBrownwasbornon25July1978,shekickedoffanera.Thefirst
随机试题
Unlikemostsports,whichevolvedovertimefromstreetgames,basketballw
[originaltext]Here’sthebiographyofJohnMuir.ItisJohnMuir’sownwrit
BusinessesThriveonTransparencyStakeholdersscrutin
[originaltext]W:HowwasyourtriptoLondon?You’vebeentoBritainbefore,ha
百分吸收系数的表示符号是A:E1cm1% B:[α]Dt C:A D:ε
A.无可行解 B.有唯一最优解medn C.有多重最优解 D.有无界解
生理性胃食管反流症状消失多在()A.3~6个月 B.6~8个月 C.7~
Thechangeinthatvillagewasmiraculou
目前我国住宅物业服务收费普遍采用的形式是()。A:酬金制收费形式 B:佣金制收
依据我国现行法规定,自然人的民事权利能力始于()。A.出生到死亡 B.年满1
最新回复
(
0
)