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# Biologists believe that they have found one of the

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Re: Biologists believe that they have found one of the [#permalink]

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18 Oct 2009, 04:43
Quote:
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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

I came up with this same question while solving Brutal bangus SC Notes.but the Option E is different .
Lets look at this again.The OA stands as
[Reveal] Spoiler:
A

"tell" is correct>C,D out.
B>incorrect.
My querie>Why is A better than the newly improved E?
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Re: Biologists believe that they have found one of the [#permalink]

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26 Oct 2009, 07:43
tejal777 wrote:
Quote:
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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

I came up with this same question while solving Brutal bangus SC Notes.but the Option E is different .
Lets look at this again.The OA stands as
[Reveal] Spoiler:
A

"tell" is correct>C,D out.
B>incorrect.
My querie>Why is A better than the newly improved E?

Hi Tejal..

ur question why A not E right???

In option E... "an individual gene" is singular...."both" is plural" ..."it' again is singular.....As you can see wrong tense being employed...!!!

hope it helps.
cheers..
kyle
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Re: Biologists believe that they have found one of the [#permalink]

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27 Oct 2009, 18:08
A - Correct.
B - "At which time" sounds awkward. Also, the word "should" in this case implies probability or obligation.
C - "Tells" incorrectly modifies substances.
D - See C above.
E - "Both about when" sounds awkward. Again, we see a problem with "should."
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Re: Biologists believe that they have found one of the [#permalink]

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02 Mar 2010, 01:13
tejal777 wrote:
Quote:
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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

I came up with this same question while solving Brutal bangus SC Notes.but the Option E is different .
Lets look at this again.The OA stands as
[Reveal] Spoiler:
A

"tell" is correct>C,D out.
B>incorrect.
My querie>Why is A better than the newly improved E?

Believe should not be followed by SHould as in E

Consider KUDOS if you like the post !!!
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Re: Biologists believe that they have found one of the [#permalink]

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02 Mar 2010, 18:52
mustdoit wrote:
tejal777 wrote:
Quote:
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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

I came up with this same question while solving Brutal bangus SC Notes.but the Option E is different .
Lets look at this again.The OA stands as
[Reveal] Spoiler:
A

"tell" is correct>C,D out.
B>incorrect.
My querie>Why is A better than the newly improved E?

Believe should not be followed by SHould as in E

Consider KUDOS if you like the post !!!

"it" is vague here, does it refer to "substances" or "individual gene"? (E) is also not concise. ...about when it should become x and y.. "about" here is somewhat redundant. ....when to become x and y... is clear and concise.
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Re: Biologists believe that they have found one of the [#permalink]

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22 Jun 2010, 17:40
I have a problem from the above posts why is E wrong?

a. Because 'it' is ambiguous in the sense that reference of it is not clear whether it is referring to 'substances' or 'genes'
b. believe cannot be followed by should
c. 'both about when' is not idiomatic while 'both when' is idiomatic.

Which of the above are the errors and which are not?

Second, as for OA being A how do break it down. I am not able to get the point of breaking and getting it from the rest of the sentence.

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.

Red ones are no need to pay attention to.
one of the substances that tell in green cannot be understood from the rest of the sentence.
How will you describe a scenario when there are 100 substances which tell something or other but only one extraordinary one of them that can describe the activity of the individual genes involved in embryo development phase. => tells is correct because that extraordinary one is singular and it then should 'tells' and not tell.
Another question is individual genes. Now what is that supposed to mean. Should I interpret it as just genes or each one of the genes. (Later sounds rubbish but is more clear to me).
I have another logic. if all substances were able to tell about all the individual genes then what the hell are biologists doing. Isn't it more obvious that some or the other substance will tell one or the other gene. Only when there is that special substance that biologist were mentioning, I would be more interested in.
Bottom line is I don't get why tell is correct and tells is incorrect based on my reasoning above.

As per the same logic to the friend wearing hat example of mikecoolboy

David is one of my friends who wear a hat.
Explanation given was: Here wear is plural because refers to your friends. What I'm saying is that among my friends who wear a hat, David is one of them.
Mine: David has a number of friends. Only few of them wear hat or non of them wear hat. In former case, I will use 'wear' but in the later case, I want to use 'wears'. Unf David was a friend of GMAC and I did not get point on Verbal.

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Re: Biologists believe that they have found one of the [#permalink]

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23 Jun 2010, 06:37
A - Concidering that refers to substances and not one singular substance - Funda grasped.
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Re: Biologists believe that they have found one of the [#permalink]

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23 Jun 2010, 19:45
..made the same mistake ...a in "patchwork of grenfields" .....understood now it is A

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Biologists believe that they have found one of the [#permalink]

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22 Feb 2011, 07:12
1
This post was
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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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

The biologists have found ONE of the substances.....
shouldn't it should be 'tells' rather than 'tell' ??
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Last edited by broall on 28 May 2017, 07:34, edited 1 time in total.
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Re: Biologists believe that they have found one of the [#permalink]

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22 Feb 2011, 07:28
Biologists believe that they have found one of the substances that [url]tell individual genes both when to become active and when to remain[/url]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 and should remain
(C) tells individual genes both when to become active and when to remain
(D) tells individual genes both when to activate and when to
(E) tell an individual gene both about when it should become active and when it should remain

The biologists have found ONE of the substances.....
shouldn't it should be 'tells' rather than 'tell' ??

NOT ONE SUBSTANCE BUT SUBSTANCES SO SUBJECT IS (SUBSTANCES ) PLURAL REQUIRES PLURAL SUBJECT.
So C and D are out. E is awkward B is redundant.
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Re: Biologists believe that they have found one of the [#permalink]

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22 Feb 2011, 07:29
NOT ONE SUBSTANCE BUT SUBSTANCES SO SUBJECT IS (SUBSTANCES ) PLURAL REQUIRES PLURAL SUBJECT.
So C and D are out. E is awkward B is redundant.
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Re: Biologists believe that they have found one of the [#permalink]

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23 Feb 2011, 21:43
|| being tested. clear A

parallel marker is both when to..... and when to

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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 02:40
i chose C as i was not aware of this rule. if what daagh has said is correct then the answer would be A.
good one daagh
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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 04:54
I think the correct answer is C. 'One of the substances' is a singular subject. So a singular verb is need. 'Tells' agrees with 'One'. So C is the answer.
A uses a plural verb for a singular subject.

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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 05:52
To support my choice of C, i can give one example. While speaking, we say 'One of my friends is a doctor'.
We do not tell 'One of my friends are a doctor'. This question is similar to this sentence. The subject is singular and needs a singular verb.

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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 06:08
yes but you are not using any relative pronoun there. Below are the ones that use relative pronoun
John is one of my friends who are doctors
John is one of my friends who is doctor
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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 07:56
The golden rule about subject verb agreement is that, the subject always the verb and not vice versa. So verbs tell or tells can not decide if the subject is one or substances.

Secondly, in GMAT you can’t reconcile to have two right choices. Only one is expected to be correct.
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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 11:19

http://www.urch.com/forums/gmat-sentenc ... scs-2.html

http://www.urch.com/forums/gmat-sentenc ... lds-2.html
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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 19:21
are you choosing A or C?
hellishbrain wrote:
If you put gun to my head I will,of course, choose A.
Correct me if wrong

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Re: Biologists believe that they have found one of the [#permalink]

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24 Feb 2011, 20:59
daagh wrote:
daagh is the only one of GMATClubbers who answers the questions. ( your sentence)

daagh is one of GMATClubbers who answers the questions. – ( another sentence) Now which verb is correct?" Answer or answers"? You can’t still stick on to the verb ‘answers” Am I right?

PS:Will my readers pardon me for such a lengthy essay?

Not at all long ! Well explained. I will choose verb "answer" for the above sentence. "who" is plural referring to group - GMATClubbers

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Re: Biologists believe that they have found one of the   [#permalink] 24 Feb 2011, 20:59

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