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Researchers now regard interferon as not a single
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13 Jun 2017, 12:07
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The Official Guide for GMAT Review 2018 Practice Question Sentence Correction Question No.: 699
Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
A. as not a single substance, but it is rather a biological family of complex molecules that play B. as not a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play D. not to be a single substance but rather a biological family of complex molecules playing E. not as a single substance but instead as being a biological family of complex molecules that play
Re: Researchers now regard interferon as not a single
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13 Jun 2017, 15:39
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AbdurRakib wrote:
Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
A. as not a single substance, but it is rather a biological family of complex molecules that play B. as not a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play D. not to be a single substance but rather a biological family of complex molecules playing E. not as a single substance but instead as being a biological family of complex molecules that play
For most constructions, both the "once outside" and "twice inside" patterns would be correct. In this context, with the idiom "regard as," the "once outside" pattern sounds awkward and unnatural, and only the "twice inside" pattern has the correct feel. Thus, the correct pattern here would be regard A not as X but as Y The only answer choice that fits this pattern is (C), which has to be the answer.
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01 Jul 2017, 07:35
Experts -- could you help me understand if, written as below, B would be a correct sentence? Trying to understand the difference between participle modifier here.
B. not as a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play
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04 Jul 2017, 06:50
sevenplusplus wrote:
Experts -- could you help me understand if, written as below, B would be a correct sentence? Trying to understand the difference between participle modifier here.
B. not as a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play
Hey I am no expert, but IMO option B ( present participle phrase without comma) is grammatically correct, because it modifies molecules in same way as does option C. But meaning subtly changes ( I am not very sure- but lets discuss) In option C you are quoting a general fact "molecules play an important..."- which is true always ( general truth/fact is presented in simple present tense) In option B you are quoting a fact which can be true for current/present situation "molecules playing an important....." ( What we are saying is that molecules are playing an important role- (and maybe they have always and will always continue to play that role , but currently they are playing an important role)
So if I had an option between B and C i would have marked C, but GMAT will not give these 2 sentences together unless there is some other bigger mistake in other part of sentence. For example if the non underline portion had another participle in parallel, then option B would have been much better.
The noun "family" is a collective noun. This means that it includes many members, but is a singular noun. Because it's a singular noun, it must have a singular verb. This is ALWAYS true for collective nouns: The company is . . . The baseball team is . . . The university faculty is . . . The interim government is . . . See: Subject-Verb Agreement on GMAT Sentence Correction
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27 Sep 2017, 02:54
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sevenplusplus wrote:
Experts -- could you help me understand if, written as below, B would be a correct sentence? Trying to understand the difference between participle modifier here.
B. not as a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play
Let's take a look at the sentence with the correct answer choice C:
Researchers now regard interferon not as a single substance but as a biological family ofcomplex moleculesthatplay an important, though not entirely defined, role in the immune system.
Per the context of the sentence, it is the complex molecules that play an important role in the immune system. It does not make sense to say that the biological family plays an important role in the immune system.
Hence, the noun modifier that in this sentence modifies the immediate preceding noun entity complex molecules. Since that stands for a plural noun entity, it takes plural verb play.
Hope this helps. Thanks. Shraddha
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27 Sep 2017, 04:24
A - not parallel ..as not a single substance but it is...... B - seems correct C - not as seems more preferable than as not... D - not to be a single ....but rather a ....not parallel E - but instead ...redundant...being a biological...wordy..
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29 Jan 2018, 00:12
Help me check my thought process !!!!
A.as not a single substance, but it is rather a biological family of complex molecules that play not parallel here
B.as not a single substance but as a biological family of complex molecules playing not parallel here
C.not as a single substance but as a biological family of complex molecules that play not as noun ... but as noun ... parallel!
D. not to be a single substance but rather a biological family of complex molecules playing In my opinion, this is redundant. "but" and "rather" both suggest a change. (Need someone help me clarify my thought process)
E. not as a single substance but instead as being a biological family of complex molecules that play Same with D, and "being" doesn't seem necessary. But I don't know if this is the correct way to identify errors
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02 Feb 2018, 22:47
AbdurRakib wrote:
The Official Guide for GMAT Review 2018 Practice Question Sentence Correction Question No.: 699
Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
A. as not a single substance, but it is rather a biological family of complex molecules that play B. as not a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play D. not to be a single substance but rather a biological family of complex molecules playing E. not as a single substance but instead as being a biological family of complex molecules that play
A. as not a single substance, but it is rather a biological family of complex molecules that play B. as not a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play D. not to be a single substance but rather a biological family of complex molecules playing E. not as a single substance but instead as being a biological family of complex molecules that play
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Re: Researchers now regard interferon as not a single
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31 Mar 2018, 10:23
Priyansha7 wrote:
Ans (C) not as X...but as Y (Correct Idiom)
Correct +1
Correct idiom is "Not as X but as Y" wherein both X and Y must be parallel entities.
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Re: Researchers now regard interferon as not a single
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02 Apr 2018, 06:57
AbdurRakib wrote:
The Official Guide for GMAT Review 2018 Practice Question Sentence Correction Question No.: 699
Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
A. as not a single substance, but it is rather a biological family of complex molecules that play B. as not a single substance but as a biological family of complex molecules playing C. not as a single substance but as a biological family of complex molecules that play D. not to be a single substance but rather a biological family of complex molecules playing E. not as a single substance but instead as being a biological family of complex molecules that play
IMHO, we cannot use that play Vs. playing to reject or select any answer because in the context of this official sentence, these expressions are certainly interchangeable.
Hope this helps. Thanks. Shraddha
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The noun "family" is a collective noun. This means that it includes many members, but is a singular noun. Because it's a singular noun, it must have a singular verb. This is ALWAYS true for collective nouns: The company is . . . The baseball team is . . . The university faculty is . . . The interim government is . . . See: Subject-Verb Agreement on GMAT Sentence Correction
Does this make sense? Mike
But similarly we have another word POLICE.
" the police " are and not the "police is ".
CAN YOU SHED SOME LIGHT ON THESE
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92% (00:52) correct 
