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skmbaaspirant
Joined: 02 Jun 2013
Last visit: 23 Jan 2014
Posts: 32
Given Kudos: 2
Schools: AGSM '15 (II)
GMAT 1: 650 Q45 V37
23 Jul 2013, 02:00
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I faced the following question in the assessment test of e-gmat and I am unable to understand why I am wrong?
Question : A May study in Nature found that 65 percent of autistic children share a set of mutations that regulates genes known to influence communication among brain cells.
A) Regulates
B) Regulate
I thought it should be mutations that regulate but my answer was wrong and correct answer is regulates .
Please help
Question : A May study in Nature found that 65 percent of autistic children share a set of mutations that regulates genes known to influence communication among brain cells.
A) Regulates
B) Regulate
I thought it should be mutations that regulate but my answer was wrong and correct answer is regulates .
Please help
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TirthankarP
Joined: 29 Apr 2013
Last visit: 10 Jan 2016
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Location: India
Concentration: General Management, Strategy
Schools: PGDM (GM) '15 (A)
GMAT Date: 11-06-2013
WE:Programming (Telecommunications)
23 Jul 2013, 02:19
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skmbaaspirant
Here "a set of mutations" is collective noun like "a pride of lions".
Collective nouns are singular.
23 Jul 2013, 16:23
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skmbaaspirant,
In the sample question you provided that skips the mutations and refers to the noun a set in the phrase a set of mutations.
To infer what that refers, one need to clearly understand the meaning of the sentence.
If you read the sentence mutations by themselves don't regulate but a set of mutations regulates make sense for what is noted subsequently - genes known to influence communication among brain cells
This is one of those question types that is always challenging for me... Similar challenges with which as well, though less frequently. E.g. refer to OG13 Q29
Hope this helps
In the sample question you provided that skips the mutations and refers to the noun a set in the phrase a set of mutations.
To infer what that refers, one need to clearly understand the meaning of the sentence.
If you read the sentence mutations by themselves don't regulate but a set of mutations regulates make sense for what is noted subsequently - genes known to influence communication among brain cells
This is one of those question types that is always challenging for me... Similar challenges with which as well, though less frequently. E.g. refer to OG13 Q29
Hope this helps
