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# Biologists believe that they have found one of the

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Intern
Joined: 29 Dec 2006
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Location: Seoul
Biologists believe that they have found one of the [#permalink]

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18 Jun 2007, 02:25
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179. Biologists believe that they have found one of the substances that tell individual genes both when to become active and when to remain quiescent in the earliest phases of an embryo’s development.
(A) tell individual genes both when to become active and when to remain
(B) tell individual genes both at which time they should become active or should remain
(C) tells individual genes both when to become active or remain
(D) tells individual genes both when to become active or when to remain
(E) will tell an individual gene both about when it should become active and remain

What is the answer? To me it was simple until I looked at the answer and was surprised.
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brainstorm

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Director
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18 Jun 2007, 04:25
This uses the construction:
One of the X(noun) that Y(verb that depends on X).
'substances' needs 'tell' not 'tells'

E uses 'about when' which is redundant.

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Intern
Joined: 29 Dec 2006
Posts: 44

Kudos [?]: 2 [0], given: 0

Location: Seoul
one of X that Y (depends on X) [#permalink]

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18 Jun 2007, 08:01
thank you for the idiomatic construction...I thought it should be tells, because of one...
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brainstorm

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one of X that Y (depends on X)   [#permalink] 18 Jun 2007, 08:01
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# Biologists believe that they have found one of the

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