更多"Scientists have cured color blindne"的相关试题:
[简答题]Scientists have cured color blindness in monkeys using gene therapy.
As well as allowing color-blind humans to tell red from green, the innovative technique could restore sight to the blind.
Sufferers of age,related macular degeneration—the most common cause of blindness in the elderly—are among the millions who could eventually benefit.
Researcher Jay Neitz said: "If we could find a way to do this with complete safety in human eyes, as we did with monkeys, there would be a lot of people who would want it. We hope the technology will be useful in correcting a lot of different vision disorders. "
Professor Neitz used gene therapy—injections of genes—to allow two male squirrel monkeys called Sam and Dalton to see in full color for the first time.
Like some humans with red-green colour blindness, the monkeys lacked a pigment that the cones—the colour—detector cells at the back of the eye—need to see red and green. As a result, they saw both red and green
[单项选择]Scientists believe that color blindness is a(n) ____ defect, and there is no cure for it.
A. retained
B. inherited
C. received
D. infected
[填空题]Experiments show that monkeys have language.
[填空题]It is proved that monkeys have the ability to combine and to generalize the sign language.
[单项选择]Which color would have made the number of self-murder attempts fall even more sharply
[单项选择]
Every color has a meaning. We have said that red is lovable. A red dress brings warmth and cheer to the saddest winter days. Color influences our moods. A yellow room makes most people feel more relaxed than a dark green one; light and bright colors make people not only happier but also more active. On the other hand, black makes people sad. A lot of people used to kill themselves on the black bridge over the Thames River. After the bridge was repainted green the number of suicide attempts fell sharply, if it had been painted in pink it would fall even more because pink is romantic.
How can light and bright color influence people（）
A. It can only make people happy.
B. It can make people sad.
C. It can make people happy and active.
[单项选择]
[听力原文]
Every color has a meaning. We have said that red is lovable. A red dress brings warmth and cheer to the saddest winter days. Color influences our moods. A yellow room makes most people feel more relaxed than a dark green one; light and bright colors make people not only happier but also more active. On the other hand, black makes people sad. A lot of people used to kill themselves on the black bridge over the Thames River. Until it was repainted green the number of self-murder attempts immediately fell sharply. If it had been painted in pink it would have fallen even more because pink is romantic.
How can light and bright color influence people（）
A. It can only make people happy.
B. It can make people sad.
C. It can make people happy and active.
[单项选择]I have six color pencils. One is red, （）is blue and （）are green.
A. another; the others
B. the other; others
C. one; others
D. another one; the other
[单项选择]The herb medicine eventually cured her disease.
A. nicely
B. apparently
C. finally
D. naturally
[填空题]Color-blind people have difficulty____________(区分红绿色).
[简答题]Suppose that your mother is cured by receiving excellent treatment and care offered by capable doctors and nurses. Write a letter of thanks to Mr. Wilson, president of the hospital. You should write approximately 100 words. Do not sign your own name at the end of your letter, using "Jane Royal" instead. You do not need to write the address.
[填空题]We learn from scientists’ experiments that monkeys are cleverer in language learning than
other animals because they have the ability to______.
