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Plant scientists have been able to genetically engineer

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Plant scientists have been able to genetically engineer [#permalink] New post 10 Oct 2010, 03:53
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Difficulty:

  35% (medium)

Question Stats:

77% (04:34) correct 23% (00:41) wrong based on 13 sessions
Plant scientists have been able to genetically engineer vegetable seeds
to produce crops that are highly resistant to insect damage. Although
these seeds currently cost more than conventional seeds, their cost is
likely to decline. Moreover, farmers planting them can use far less pesticide,
and most consumers prefer vegetables grown with less pesticide,
therefore, for crops for which these seeds can be developed, their use
is likely to become the norm.
which of the following would be most useful to know in evaluating the
argument above?
A. Whether plant scientists have developed insect-resistant seeds
For every crop that is currently grown commercially
B. Whether farmers typically use agricultural pesticides in larger
Amounts than is necessary to prevent crop damage.
C. Whether plants grown from the new genetically engineered seeds
Can be kept completely free of insect damage.
D. Whether seeds genetically engineered to produce insect-resistant
crops generate significantly lower per acre crop yields than do
currently used seeds.
E. Whether most varieties of crops currently grown commercially have
Greater natural resistance to insect damage than did similar varieties
in the past.
[Reveal] Spoiler: OA
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Re: Plant scientists [#permalink] New post 10 Oct 2010, 06:39
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raghavs wrote:
Plant scientists have been able to genetically engineer vegetable seeds
to produce crops that are highly resistant to insect damage. Although
these seeds currently cost more than conventional seeds, their cost is
likely to decline. Moreover, farmers planting them can use far less pesticide,
and most consumers prefer vegetables grown with less pesticide,
therefore, for crops for which these seeds can be developed, their use
is likely to become the norm.
which of the following would be most useful to know in evaluating the
argument above?
A. Whether plant scientists have developed insect-resistant seeds
For every crop that is currently grown commercially
B. Whether farmers typically use agricultural pesticides in larger
Amounts than is necessary to prevent crop damage.
C. Whether plants grown from the new genetically engineered seeds
Can be kept completely free of insect damage.
D. Whether seeds genetically engineered to produce insect-resistant
crops generate significantly lower per acre crop yields than do
currently used seeds.
E. Whether most varieties of crops currently grown commercially have
Greater natural resistance to insect damage than did similar varieties
in the past.


Conclusion: Therefore, for crops for which these seeds can be developed, their use
is likely to become the norm.

We need to find out what other information would likely be a deciding factor in arriving at the conclusion above. That additional information could strengthen or weaken the conclusion, either way it should impact the conclusion stated in the stimulus.

Scanning through the options above, option C and D can be narrowed down since the impact the conclusion in some way.

Option C -- Whether plants grown from the new genetically engineered seeds
Can be kept completely free of insect damage.

We have been told in the stimulus that the plants are highly resistant and hence this option is only questioning the premise and not the conclusion.

D. Whether seeds genetically engineered to produce insect-resistant
crops generate significantly lower per acre crop yields than do
currently used seeds.

If the crops were to become the norm then it should at least have the same about of yield. If for some reason the yield is less than what it is currently then these G.M crops could not become the norm. This is the correct option.

Option D.
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Re: Plant scientists [#permalink] New post 10 Oct 2010, 09:42
D
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Re: Plant scientists [#permalink] New post 10 Oct 2010, 09:52
It's d

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Re: Plant scientists [#permalink] New post 10 Oct 2010, 22:22
good explanation ezhilkumarank..kudos to u
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Re: Plant scientists [#permalink] New post 10 Oct 2010, 23:09
Kudos to you for a good post. Please keep them coming. Also, how are you finding 1000 series? I did the first 16 tests and found them a bit unnecessarily challenging and sometimes pretty vague. But this one was good. Has there been any research on the 1000CR?
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Re: Plant scientists [#permalink] New post 10 Oct 2010, 23:40
hi hemanthp sorry this Q is not from 1000 series.was mistakenly included in 1000 series.I too find 1000 series question is bit short and only few questions matches with real gmat questions.Do u have any good source for critical resoning questions.????
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Re: Plant scientists [#permalink] New post 11 Oct 2010, 00:32
I am doing Veritas which has about 200 CR questions and also has good theory to go with it. The level of toughness isn't awesome but decent. IT is good practice.
I have discovered bellcurves.com recently which, for some thankful reasons, keeps on giving me free tests (i have taken 2 already) and I find their CR really good. I will continue taking as long as its free.
I am going through ARCO, KAplan, mcGrawHill and other textbooks just for questions. Each book has about 50 and we can run through each one in half a day. this is better than going through some unknown source because there are explanations and answers. Once I exhaust this, then will go through 1000.
But even browsing through the gmatclub forums is a good way to practice.
Thank you.
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Re: Plant scientists [#permalink] New post 12 Oct 2010, 01:05
raghavs wrote:
Plant scientists have been able to genetically engineer vegetable seeds
to produce crops that are highly resistant to insect damage. Although
these seeds currently cost more than conventional seeds, their cost is
likely to decline. Moreover, farmers planting them can use far less pesticide,
and most consumers prefer vegetables grown with less pesticide,
therefore, for crops for which these seeds can be developed, their use
is likely to become the norm.
which of the following would be most useful to know in evaluating the
argument above?
A. Whether plant scientists have developed insect-resistant seeds
For every crop that is currently grown commercially
B. Whether farmers typically use agricultural pesticides in larger
Amounts than is necessary to prevent crop damage.
C. Whether plants grown from the new genetically engineered seeds
Can be kept completely free of insect damage.
D. Whether seeds genetically engineered to produce insect-resistant
crops generate significantly lower per acre crop yields than do
currently used seeds.
E. Whether most varieties of crops currently grown commercially have
Greater natural resistance to insect damage than did similar varieties
in the past.


P1- Scientists have engineered genetic seeds with Higher resistance to Pests.
P2- This seeds will significantly reduce the Pesticides currently used.
P3- Consumers prefer vegetables grown with lesser perticides.
Conclusion - These seeds will become the norm.

Only option D clearly provides new information relevant to the argument to make a decision. One technique I find usefull in these questions is by answering hypothetically to the Answer choices and determining if the answer ( irrespective of positive or negative ) has any impact on the conclusion.
Eg. If I answer No to Option D, then it typically strengthens the argument while for all other options it neither strengthens or weakens the argument.
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Re: Plant scientists [#permalink] New post 12 Oct 2010, 03:43
D..

Since I am left with little time..which one gives best practice questions for CRs?
Currently I have OG12, Kaplan & PR. I have done most of them in OG12..
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Re-taking GMAT. Hope the charm works this time.. :)

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Re: Plant scientists [#permalink] New post 12 Oct 2010, 06:05
I have a question, the word EVERY is problematic? if it were most, would it make any difference?
Re: Plant scientists   [#permalink] 12 Oct 2010, 06:05
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