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# Dr. Tonegawa won the Nobel Prize for discovering how the

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Senior Manager
Joined: 19 Feb 2007
Posts: 325

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Dr. Tonegawa won the Nobel Prize for discovering how the [#permalink]

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12 Jul 2007, 10:14
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255. Dr. Tonegawa won the Nobel Prize for discovering how the body can constantly change its genes to fashion a seeming unlimited number of antibodies, each specifically targeted at an invading microbe or foreign substance.

(A) seeming unlimited number of antibodies, each specifically targeted at
(B) seeming unlimited number of antibodies, each targeted specifically to
(C) seeming unlimited number of antibodies, all specifically targeted at
(D) seemingly unlimited number of antibodies, all of them targeted specifically to
(E) seemingly unlimited number of antibodies, each targeted specifically at

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Senior Manager
Joined: 06 Jul 2004
Posts: 468

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Location: united states

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12 Jul 2007, 10:23
sidbidus wrote:
255. Dr. Tonegawa won the Nobel Prize for discovering how the body can constantly change its genes to fashion a seeming unlimited number of antibodies, each specifically targeted at an invading microbe or foreign substance.

(A) seeming unlimited number of antibodies, each specifically targeted at
(B) seeming unlimited number of antibodies, each targeted specifically to
(C) seeming unlimited number of antibodies, all specifically targeted at
(D) seemingly unlimited number of antibodies, all of them targeted specifically to
(E) seemingly unlimited number of antibodies, each targeted specifically at

A,C and E use "at". so, B and D can be discarded.

use of "all" is wrong in D. It distorts the meaning.
between A and E, E is the best.

E in my opinion.
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Kudos [?]: 136 [0], given: 0

Re: SC - Tonegawa   [#permalink] 12 Jul 2007, 10:23
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