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Before scientists learned how to make a synthetic growth [#permalink]
 11 May 2008, 20:28
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0% (00:00) wrong based on 0 sessions
11. 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. scientist 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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sondenso wrote: 11. 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. scientist 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 C ? correct use of tense and "it" clearly refers to growth hormone
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B for correct tense and retention of meaning. sondenso wrote: 11. 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. scientist 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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sondenso wrote:
11. 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. scientist 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
i have a doubt..is the term 'had learned' correct?shouldn't it be just 'learned'.m confused.
actually i was goin wid D for the above reason.
cud u pls explain?
thx
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prateek - I may be totally wrong ... please wait for the OA.
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prateek11587 wrote: i have a doubt..is the term 'had learned' correct?shouldn't it be just 'learned'.m confused Yeah, That is reasoning I use to eliminate B. Fortunately, GmatPrep says B is not OA 
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C sounds the best. and tense in the right sense. D modifies the meaning -> it says before the scientists learn how to make the growth hormone, they need to take it out from the human dead body.. this is wrong..
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D.
I don't think it changed the meaning of the original sentence.
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On my second attempt - D looks pretty good. C changes the meaning. sondenso wrote: 11. 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. scientist 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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It seems that GmatPrep is more than difficult and tricky! D is not OA
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In that case it is C.
I think the key is to try to "decrypt" what the sentence implies.
What I thought they implied was
To create synthetic growth hormone , scientists needed to extract it from the pitutary gland.
But what the sentence really means is that :
Scientists are able to create synthetic growth hormone now. But earlier the growth hormone had to be extracted out of pitutary gland because creation of synthetic growth hormone was not possible. Hence it makes sense to remove scientists out of picture completely and use passive voice for the extraction.
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Oh, sorry, i still not confirm the OA OA is C 
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Tough one, but C. 1. 'to make a synthetic growth hormone' vs 'to synthesize the growth hormone' 1.1. the second option is more concise. 1.2. 'it' at the underlined part of the sentence refers to 'the growth hormone', not to 'a synthetic growth hormone' So, C and E remains E is passive and the use of 'have' is incorrect. Guys, why is 'scientist' correct in C? I thought that 'a scientist' should be.
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walker wrote: Guys, why is 'scientist' correct in C? I thought that 'a scientist' should be You so careful! Typing error!
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sondenso wrote: walker wrote: Guys, why is 'scientist' correct in C? I thought that 'a scientist' should be You so careful! Typing error! After my 1st attempt I'm very angry  
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billyjeans wrote: D.
I don't think it changed the meaning of the original sentence. just read this problem again, yes it changed the meaning of the sentence. 
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elimination:
painstakingly (adverb) is suppossed to modify the verb (removed) and not any nout/pronoun (such as -it) and hence has to be used with removed and nowhereelse. Only 'C' does so.
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walker wrote: sondenso wrote: walker wrote: Guys, why is 'scientist' correct in C? I thought that 'a scientist' should be You so careful! Typing error! After my 1st attempt I'm very angry Keep calm!
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sondenso wrote: Keep calm! Ok 
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Because of the typo, I had eliminated C - but if that is a typo - then C seems most apt - no wonder it is the OA.
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