T-9-Q14. GWD-13-40In response to viral infection,the immune systems of mice typically produce antibodies that destroy the virusby binding to proteins on its surface. Mice infected with a herpesvirus generally develop keratitis, adegenerative disease affecting part of the eye. Since proteins on the surface of cells in this part of theeye closely resemble those on the herpesvirus surface, scientists hypothesizethat these cases of keratitis are caused by antibodies to herpesvirus.
Which of the following, iftrue, gives the greatest additional support to the scientists’ hypothesis?
A. Other types of virus have surface proteins that closely resembleproteins found in various organs of mice.
B. There are mice that are unable to form antibodies in response to herpesinfections, and these mice contract herpes at roughly the same rate as othermice.
C. Mice that are infected with a herpesvirus but do not develop keratitisproduce as many antibodies as infected mice that do develop keratitis.
D. There are mice that are unable to form antibodies in response to herpesinfections, and these mice survive these infections without ever developingkeratitis.
E.Mice that have never beeninfected with a herpesvirus can sometimes develop keratitis
想不通答案为什么是d | 
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发表于 2010-7-5 03:59:56
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