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标题: 11月JJ [打印本页]

作者: terrywu1526 时间: 2005-11-27 10:50
标题: 11月JJ

Q40:

In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface. Mice infected with a herpesvirus generally develop keratitis, a degenerative disease affecting part of the eye. Since proteins on the surface of cells in this part of the eye closely resemble those on the herpesvirus surface, scientists hypothesize that these cases of keratitis are caused by antibodies to herpesvirus.

Which of the following, if true, gives the greatest additional WEAKEN to the scientists’ hypothesis?

Other types of virus have surface proteins that closely resemble proteins found in various organs of mice.

There are mice that are unable to form antibodies in response to herpes infections, and these mice contract herpes at roughly the same rate as other mice.

Mice that are infected with a herpesvirus but do not develop keratitis produce as many antibodies as infected mice that do develop keratitis.

There are mice that are unable to form antibodies in response to herpes infections, and these mice survive these infections without ever developing keratitis.

E. Mice that have never been infected with a herpesvirus can sometimes develop keratitis

請教各位前輩，這題改作WEAKEN後，答案會是那一個?

作者: terrywu1526 时间: 2005-11-27 11:29
我認為此題答案為C, 各位意見如何?

作者: tobebraveleo 时间: 2005-11-27 17:01
E吧。

作者: cindy_wanzi 时间: 2005-11-27 20:48

同意terry选C

作者: z520m 时间: 2005-11-29 15:02
我认为应该是E,E比C更weaken科学家的观点。E说明了即使没有h,mice不产生H的antibody,还是会产生K,就表示K不是由h的antibody引起的。C有作用，但是不如E.

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