ScientistsinArgentinahavecreatedtheworld’sfirstcowtoo...
问题详情:
Scientists in Argentina have created the world’s first cow to own two human genes that will enable it to produce human-like milk, which is matchless up to now. It is a breakthrough in the area of clone.
Genetic engineering was used to introduce the "mothers’milk" genes into the animal before birth, according to the National Institute of Agribusiness Technology in Buenos Aires.
As an adult the cloned cow "will produce milk that is similar to humans" in what will prove "a development of great importance for the nutrition of infants", it said in a statement.
"The cloned cow, named Rosita ISA, is the first one born in the world that owns two human genes that contain the proteins present in human milk," the statement said.
In April, scientists in China published details of research showing that they had created GM Holstein dairy cows which produced milk containing proteins found in human breast milk.
But the Argentine team says the Chinese only introduced one human gene, whereas
their research involved two genes meaning the milk will more closely resemble that of humans.
Rosita ISA was born on April 6 and was delivered by Caesarean section because she weighed around 100 pounds, roughly twice the normal weight of Jersey cows.
Adrian Mutto, from the National University of San Martin said "Our goal was to raise the nutritional value of cows’milk by adding two human genes, the protein lactoferrin and lysozyme, which can provide newly-born babies with anti-bacterial and anti-viral(抗病毒)
protection."
Cristina Kirchner, President of Argentina, said that the scientific institute "makes all Argentines proud.”She also revealed that she had rejected the "honor" of having the cow named after her. "They came to tell me that the name is Cristina, but what woman would like to have a cow named after her? It appeared to me to be more appropriate to call it Rosita.”
32. What can we know about Rosita ISA according to the passage?
A. Its milk has larger nutritional value than others’.
B. It is the first cow with a human gene.
C. It is as heavy as Jersey cows.
D. Its milk has the same proteins as human breast milk.
33. Lactoferrin and lysozyme in milk .
A. can offer more proteins in cow milk
B. help provide more milk from cow
C. can increase the production of milk
D. are good for babies’health
34. We can infer from the last paragraph that
A. it is hard to name the cow
B. the president wants the cow named after her
C. honorable as it is, no women like the cow named after them
D. Cristina Kirchner objects to creating the cloned cow
35. What would be the best title of the passage?
A. Scientists in Argentina could produce human milk
B. Scientists create cow that produces "human" milk
C. The cloned cow would bring about benefits
D. How was the cloned cow born?
【回答】
ADCB
知识点:健康保健类阅读
题型:阅读理解
-
(2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三...
问题详情: (2010·福建高考)入海河流三角洲的土地利用类型受河流淡水和海洋咸水的共同影响。某三角洲面积增长较快,该三角洲地区2007年土地利用类型的构成如下表所示。读表,完成11~12题。旱地林草地盐荒地滩涂其它合计占总面积比例(%)171232182110011.该三角洲地...
-
_____________,_____________。万里悲秋常作客,百年多病独登台。杜甫《登高》
问题详情:_____________,_____________。万里悲秋常作客,百年多病独登台。杜甫《登高》【回答】无边落木萧萧下,不尽长*滚滚来。知识点:其他题型:填空题...
-
某有机物结构简式为,下列关于该有机物的说法中不正确的是( )A.遇FeCl3溶液显紫*B.与足量的*氧化*溶...
问题详情:某有机物结构简式为,下列关于该有机物的说法中不正确的是()A.遇FeCl3溶液显紫*B.与足量的*氧化*溶液在一定条件下反应,最多消耗NaOH3molC.能发生缩聚反应和加聚反应D.1mol该有机物与溴发生加成反应,最多消耗1molBr2【回答】解析A项,有机物分子中存在*羟基,所以...
-
下列句子中没有运用拟人修辞手法的一项是( ) A.我们的春雁每天都要去玉米地作一次旅行,但绝不是偷偷摸摸进行的...
问题详情:下列句子中没有运用拟人修辞手法的一项是( ) A.我们的春雁每天都要去玉米地作一次旅行,但绝不是偷偷摸摸进行的。B.每次出发前,都有一场高声而有趣的辩论,而每次返回之前的争论则更为响亮。C.3月的大雁则不同。尽管它们在冬天的大部分时间里都可能受到*击,但...
相关文章
- ---Thestudentslookverytiredafterthesportsmeeting.---We...
- HereisBooked.net’sselectionofthestrangesteventsworldwi...
- 完形填空。It'sWednesdayafternoon.Schoolisover.Thestudentsar...
- I’verecentlyreturnedfromatriptoChinawhereStarbuckssigne...
- Socialnetworkingisn’tonlyfortheunder40s.Morethan25perce...
- Generally,students'innermotivationwithhighexpectationsf...
- 阅读与回答问题SixteenisaspecialageintheUnitedStates.There’soft...
- “I’matpeacewithit.Ihavenoregrets.”LiNapostedthisbitter...
- –Wedon’tneedtogottoschoolthisafternoon. --Butthereis
- Delicatestepgivesmosquitoesstrengthtowalkonwater.It'sno...