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蛋白质工程（protein engineering)则是在基因工程基础上综合蛋白质化学、蛋白质晶体学、计算机
A.第一代基因工程
B.第二代基因工程
C.第三代基因工程
D.第四代基因工程
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.第一代基因工程
B.第二代基因工程
C.第三代基因工程
D.第四代基因工程
如果结果不匹配，请 联系老师 获取答案
更多“蛋白质工程（protein engineering)则是在基…”相关的问题
Americans eat______as they actually need every day.
A．twice as much protein
B．twice protein as much
C．twice protein as much
D．protein as twice much
Americans eat ______ as they actually need every day.
A．twice as much protein
B．twice protein as much twice
C．twice protein as much
D．protein as twice much
The rats fed unrestricted diets do NOT
A．have one preventing-aging protein increased.
B．have their cell death increased or doubled.
C．have their DNA fragmentation doubled.
D．have the levels of proteins increased.
By "if the fuel isn't there, the spark is useless", the author means______.
A．carbohydrates, protein and fat are enough to sustain a human life
B．vitamins and minerals are virtually of no value
C．carbohydrates, protein and fat are as important as vitamins and minerals
D．without carbohydrates, protein and fat, vitamins and minerals are of no use
According to the passage, meat will completely disappear in the future because ______.
A．people have to spend too much time and energy to produce it
B．too much grain protein is needed to produce it
C．it contains too much fat and protein
D．it is not good to the health
The engine is ______ at 6,000 revolutions per minute.
A．turning in
B．turning off
C．turning over
D．turning to
The mechanic examined the car engine ______ but could find nothing wrong with it.
A．throughout
B．exactly
C．thoroughly
D．altogether
When you find the engine is hotter than normal, you should ______.
A．drive to a service station to get a cool engine
B．turn off your heater so as to cool down the engine
C．switch on the heater as soon as possible
D．try to make the engine boil over ______.
What will happen to the engine when oil pressure drops？
A．It will be damaged when the engine stops working.
B．Very soon it will be severely damaged.
C．Serious damage to it is not likely to occur within the first few minutes.
D．Damage may occur to the engine when you drive the car at high speed.
Who is going to feed all these people？ Where is the food going to come from？ Are we going to have enough food？ Are we going to produce more artificial foods？
One way of improving the situation is for people to eat less meat. Why？ Because it takes 4 kilos of grain protein (蛋白质) to produce half a kilo of meat protein.Clearly, there is not going to be sufficient meat protein for 8 billion people. Therefore, it will also be necessary to change eating habits because meat is the main part of many people's food today.
A possible solution to this latter problem is the soybean (大豆). The soybean plant produces beans which have a very high fat and protein content. Scientists can now make these look and taste like real meat. They can also make many other artificial products such as soybean milk, for example, which has a taste of milk and can be used in cooking in very much the same ways as cow's milk. In fact, one woman in the United States fed her family only on soybeans for a year! She gave them soybean beef, soybean chicken, soybean mi]k, and sometimes just soybeans. Possibly, we are all going to eat soybeans in the future and finally give up meat completely from our tables.
What is the main subject of the passage？
A．A solution to man's food problem.
B．A solution to the population problem.
C．Advantages of soybean.
D．How to develop good eating habits.
A.contacting
B.connecting
C.uniting
D.combining
