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Before scientists learned how to make a synthetic growth

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Before scientists learned how to make a synthetic growth [#permalink] New post 22 Jan 2012, 18:50
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49% (01:57) correct 51% (00:46) wrong based on 183 sessions
Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.

A. scientists learned how to make a synthetic growth hormone, removing it painstakingly
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly
C. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
E. learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists
[Reveal] Spoiler: OA

Last edited by Narenn on 01 Aug 2013, 06:17, edited 1 time in total.
Part of the sentence underlined
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Re: SC- Meaning [#permalink] New post 22 Jan 2012, 19:54
+1 for B. Thanks for sharing this. Whats your question about it?
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Re: SC- Meaning [#permalink] New post 22 Jan 2012, 21:03
I am also getting B for this.C is bit ambiguous.Will wait for an explanation.
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Re: SC- Meaning [#permalink] New post 23 Jan 2012, 08:44
This question tests the Past Perfect Tense.
"B" is incorrect because it uses had twice. This does not make sense in terms of event sequence.
"C" is correct because it uses simple Past in the first Clause and Past Perfect - had construction - to indicate the sequence of events.
1) First they had to Painstakingly extracted the hormone
2) Later they were able to create it synthetically.
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Re: SC- Meaning [#permalink] New post 23 Jan 2012, 09:11
I was reading the Manhattan Post regarding this Question. According to the Instructors on that Forum "the had to be removed" construction is not in Past Perfect Tense. I would like to ask for a break down of each individual answer choice.
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Re: SC- Meaning [#permalink] New post 24 Jan 2012, 22:43
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IMO C, Please see POE, please feel free to pass comments

A. scientists learned how to make a synthetic growth hormone, removing it painstakingly
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly
C. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
E. learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists

A B D -- out - Redundancy , 'make' and 'synthetic' - conveys same meaning.
Between C and E : E --out Modifier error. hence C
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Re: SC- Meaning [#permalink] New post 25 Jan 2012, 13:33
A. scientists learned how to make a synthetic growth hormone, removing it painstakingly -Incomplete
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly
C. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
E. learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists
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Re: SC- Meaning [#permalink] New post 27 Jan 2012, 02:30
A. scientists learned how to make a synthetic growth hormone, removing it painstakingly - Make a synthetic, removing wrong
B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly - had, had
C. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed - correct
D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly - make a synthetic, tense?
E. learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists - meaning?


POE "C"
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Re: Before scientists learned how to make a synthetic growth [#permalink] New post 11 Nov 2013, 12:17
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Before scientists learned how to make a synthetic growth hormone, removing it painstakingly in small amounts from the pituitary glands of human cadavers.
The sentence is meant to say - before scientists learnt how to make synthetic growth hormones , they used to go through the painful way to extract the hormones ( growth hormones) i.e the growth hormones were removed from human cadavers

A. scientists learned how to make a synthetic growth hormone, removing it painstakingly
Sentence fragment . There is no working verb in the sentence - "before scientists learned <> , removing it <>"
the "IT" here refers to "synthetic growth hormone" , rather than "growth hormones" ( it was not the "synthetic growth hormones" that they removed from human cadavers , but was the growth hormones .


B. scientists had learned about making a synthetic growth hormone, they had to remove it painstakingly

*error in tense. The learning of making synthetic hormone , happened after they used to remove growth hormone in a painstaking way . Hence "had" in first part of sentence is incorrect.
* the "IT" in second part of the sentence refers to "synthetic growth hormone " rather than just "growth hormone" , conveying an absurd meaning that "before scientists learned to make synthetic growth hormone , they used to remove synthetic growth hormone from pituitary glands".


C. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
CORRECT : the "IT" here refers to "growth hormone" , hence conveying a correct meaning.Sentence is framed in a proper Tense.

D. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
Same issue with "IT" as in A and B.

E. learning how to synthesize the growth hormone, it have to be painstakingly removed by scientists

*Modifier error- doesn't convey who is synthesizing the growth hormone ( comma should immediately follow with the noun scientist . Which is not the case here).
Tense error - messes up the tense issue ( should be "had" instead of "have" , since this action is not happening anymore now and this happened before the scientists learned to synthesize).


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Re: Before scientists learned how to make a synthetic growth [#permalink] New post 02 Dec 2013, 18:14
C is not ambiguous. :yikes Its perfect. If anything, I was confused between C & D before realizing that D had redundancy issues. Hence C. :teleport
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Re: Before scientists learned how to make a synthetic growth [#permalink] New post 02 Dec 2013, 21:30
mohnish104 wrote:
C is not ambiguous. :yikes Its perfect. If anything, I was confused between C & D before realizing that D had redundancy issues. Hence C. :teleport

Can you please explain what redundancy issues does D have. I am not able to figure this out.
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Re: Before scientists learned how to make a synthetic growth [#permalink] New post 02 Dec 2013, 22:38
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ayushman wrote:
mohnish104 wrote:
C is not ambiguous. :yikes Its perfect. If anything, I was confused between C & D before realizing that D had redundancy issues. Hence C. :teleport

Can you please explain what redundancy issues does D have. I am not able to figure this out.[/q J

Just as you don't use the words annual and year in the same sentence because they mean the same thing, you don't use make and synthesize in the same sentence because they mean the same thing. Synthetic also means artificial/unnatural/man made. You don't make something natural, you find something natural.


Hope it helps.
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Re: Before scientists learned how to make a synthetic growth [#permalink] New post 02 Dec 2013, 23:58
mohnish104 wrote:
Just as you don't use the words annual and year in the same sentence because they mean the same thing, you don't use make and synthesize in the same sentence because they mean the same thing. Synthetic also means artificial/unnatural/man made. You don't make something natural, you find something natural.
Hope it helps.

Yes it does help..thanks. It was very subtle. I can definitely not figure this out on the exam day.
Re: Before scientists learned how to make a synthetic growth   [#permalink] 02 Dec 2013, 23:58
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