|
Author |
Message |
|
TAGS:
|
|
|
Intern
Joined: 22 Sep 2004
Posts: 30
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Certain genetically modified strains of maize produce a [#permalink]
 06 May 2005, 15:03
Question Stats:
86% (02:58) correct
13% (02:43) wrong based on 2 sessions
Certain genetically modified strains of maize produce a powerful natural insecticide. The insecticide occurs throughout the plant, including its pollen. Maize pollen is dispersed by the wind and frequently blows onto milkweed plants that grow near maize fields. Caterpillars of monarch butterflies feed exclusively on milkweed leaves. When these caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they die. Therefore, by using genetically modified maize, farmers put monarch butterflies at risk. Which of the following would it be most useful to determine in order to evaluate the argument? A. Whether the natural insecticide is as effective against maize-eating insects as commercial insecticides typically used on maize are B. Whether the pollen of genetically modified maize contains as much insecticide as other parts of these plants C. Whether monarch butterfly caterpillars are actively feeding during the part of the growing season when maize is releasing pollen D. Whether insects that feed on genetically modified maize plants are likely to be killed by insecticide from the plant’s pollen E. Whether any maize-eating insects compete with monarch caterpillars for the leaves of milkweed plants growing near maize fields
|
|
|
|
|
|
|
SVP
Joined: 25 Nov 2004
Posts: 1581
Followers: 4
Kudos [?]:
13
[0], given: 0
|
B. Whether the pollen of genetically modified maize contains as much insecticide as other parts of these plants
|
|
|
|
|
|
Director
Joined: 01 Feb 2003
Posts: 897
Location: Hyderabad
Followers: 1
Kudos [?]:
9
[0], given: 0
|
Agree with MA
|
|
|
|
|
|
Manager
Joined: 10 Mar 2005
Posts: 52
Location: india
Followers: 0
Kudos [?]:
0
[0], given: 0
|
C.
The arguement is that by using genetically modified maize, farmers put monarch butterflies at
risk.
The caterpillars die if they eat the pollen at all. They must eat it when the pollen spreads.
Since the question says that the caterpillars die when they eat the leaves in which the pollen is present. B is out.
|
|
|
|
|
|
Senior Manager
Joined: 10 Nov 2004
Posts: 328
Followers: 1
Kudos [?]:
4
[0], given: 0
|
My pick is C
|
|
|
|
|
|
Senior Manager
Joined: 10 Dec 2004
Posts: 277
Followers: 1
Kudos [?]:
0
[0], given: 0
|
"E"
Whether the natural insecticide is as effective against maize-eating insects as
commercial insecticides typically used on maize are
Outta scope.
B. Whether the pollen of genetically modified maize contains as much insecticide as
other parts of these plants
Does not matter. The reason is presence of insectiside and not really amount. INcorrect.
C. Whether monarch butterfly caterpillars are actively feeding during the part of the
growing season when maize is releasing pollen
We already know that butterflies are eating the weed with pollen. Even if they are not actively feeding and still dying , does not help.
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
Even if we know this, it does not address buttefflies issue.
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields
If this is true then insecticide may not be the cause.
|
|
|
|
|
|
VP
Joined: 26 Apr 2004
Posts: 1255
Location: Taiwan
Followers: 1
Kudos [?]:
7
[0], given: 0
|
ttar wrote: Certain genetically modified strains of maize produce a powerful natural insecticide. The
insecticide occurs throughout the plant, including its pollen. Maize pollen is dispersed by
the wind and frequently blows onto milkweed plants that grow near maize fields.
Caterpillars of monarch butterflies feed exclusively on milkweed leaves. When these
caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they
die. Therefore, by using genetically modified maize, farmers put monarch butterflies at
risk.
Which of the following would it be most useful to determine in order to evaluate the
argument?
A. Whether the natural insecticide is as effective against maize-eating insects as
commercial insecticides typically used on maize are
B. Whether the pollen of genetically modified maize contains as much insecticide as
other parts of these plants
C. Whether monarch butterfly caterpillars are actively feeding during the part of the
growing season when maize is releasing pollen
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields
go for C.
A. Whether the natural insecticide is as effective against maize-eating insects as commercial insecticides typically used on maize are
not important
B. Whether the pollen of genetically modified maize contains as much insecticide as other parts of these plants
not important
C. Whether monarch butterfly caterpillars are actively feeding during the part of the growing season when maize is releasing pollen
if they eat, they die, or if they don't eat, they will not die.
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
we are talking about catepillar rather than insects.
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields
not important
|
|
|
|
|
|
Director
Joined: 01 Feb 2003
Posts: 897
Location: Hyderabad
Followers: 1
Kudos [?]:
9
[0], given: 0
|
chunjuwu wrote: ttar wrote: Certain genetically modified strains of maize produce a powerful natural insecticide. The
insecticide occurs throughout the plant, including its pollen. Maize pollen is dispersed by
the wind and frequently blows onto milkweed plants that grow near maize fields.
Caterpillars of monarch butterflies feed exclusively on milkweed leaves. When these
caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they
die. Therefore, by using genetically modified maize, farmers put monarch butterflies at
risk.
Which of the following would it be most useful to determine in order to evaluate the
argument?
A. Whether the natural insecticide is as effective against maize-eating insects as
commercial insecticides typically used on maize are
B. Whether the pollen of genetically modified maize contains as much insecticide as
other parts of these plants
C. Whether monarch butterfly caterpillars are actively feeding during the part of the
growing season when maize is releasing pollen
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields go for C. A. Whether the natural insecticide is as effective against maize-eating insects as commercial insecticides typically used on maize are not importantB. Whether the pollen of genetically modified maize contains as much insecticide as other parts of these plants not importantC. Whether monarch butterfly caterpillars are actively feeding during the part of the growing season when maize is releasing pollen if they eat, they die, or if they don't eat, they will not die. D. Whether insects that feed on genetically modified maize plants are likely to be killed by insecticide from the plant’s pollen we are talking about catepillar rather than insects. E. Whether any maize-eating insects compete with monarch caterpillars for the leaves of milkweed plants growing near maize fields not importantAgree with chunjuwu!
|
|
|
|
|
|
Director
Joined: 14 Jul 2004
Posts: 714
Followers: 1
Kudos [?]:
3
[0], given: 0
|
ttar wrote: Certain genetically modified strains of maize produce a powerful natural insecticide. The
insecticide occurs throughout the plant, including its pollen. Maize pollen is dispersed by
the wind and frequently blows onto milkweed plants that grow near maize fields.
Caterpillars of monarch butterflies feed exclusively on milkweed leaves. When these
caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they
die. Therefore, by using genetically modified maize, farmers put monarch butterflies at
risk.
Which of the following would it be most useful to determine in order to evaluate the
argument?
A. Whether the natural insecticide is as effective against maize-eating insects as
commercial insecticides typically used on maize are
B. Whether the pollen of genetically modified maize contains as much insecticide as
other parts of these plants
C. Whether monarch butterfly caterpillars are actively feeding during the part of the
growing season when maize is releasing pollen
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields
Question Type: Evaluate an argument.
Conclusion: Genetically modified maize present danger to butterflies.
My AC is C.
A: Boot out. Argument stem doesnt discuss about "maize-eating insects" and commerical Vs natural insecticide. Out of Scope.
B: Boot out. The argument stem isnt concerned with which part of hte maize plant produces most or least insectiticide.
C: Good Point. Are the catterpillar feeding during the time pollen is released? Keep AC.
D: Boot out. Out of Scope? Insects? We are talking of the sequence of events between maize plants and catterpillar.
E: Boot out. Out of Scope. Why does it matter if there is competition or not.
|
|
|
|
|
|
Director
Joined: 05 Jan 2005
Posts: 648
Followers: 1
Kudos [?]:
6
[0], given: 0
|
clear (C)
|
|
|
|
|
|
Manager
Joined: 16 Oct 2004
Posts: 50
Followers: 1
Kudos [?]:
0
[0], given: 0
|
C seems to be correct
|
|
|
|
|
|
Manager
Joined: 16 Oct 2004
Posts: 50
Followers: 1
Kudos [?]:
0
[0], given: 0
|
C seems to be correct
|
|
|
|
|
|
Director
Joined: 14 Jul 2004
Posts: 714
Followers: 1
Kudos [?]:
3
[0], given: 0
|
ttar wrote: Certain genetically modified strains of maize produce a powerful natural insecticide. The
insecticide occurs throughout the plant, including its pollen. Maize pollen is dispersed by
the wind and frequently blows onto milkweed plants that grow near maize fields.
Caterpillars of monarch butterflies feed exclusively on milkweed leaves. When these
caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they
die. Therefore, by using genetically modified maize, farmers put monarch butterflies at
risk.
Which of the following would it be most useful to determine in order to evaluate the
argument?
A. Whether the natural insecticide is as effective against maize-eating insects as
commercial insecticides typically used on maize are
B. Whether the pollen of genetically modified maize contains as much insecticide as
other parts of these plants
C. Whether monarch butterfly caterpillars are actively feeding during the part of the
growing season when maize is releasing pollen
D. Whether insects that feed on genetically modified maize plants are likely to be
killed by insecticide from the plant’s pollen
E. Whether any maize-eating insects compete with monarch caterpillars for the
leaves of milkweed plants growing near maize fields
OA please...
|
|
|
|
|
|
Intern
Joined: 15 Aug 2004
Posts: 48
Followers: 1
Kudos [?]:
0
[0], given: 0
|
Between E & C .
E looks very generic (about insects & not specific to caterpillar). Hence eliminate. I shall go with C
OA ?
|
|
|
|
|
|
Director
Joined: 14 Jul 2004
Posts: 714
Followers: 1
Kudos [?]:
3
[0], given: 0
|
TTar OA please......
|
|
|
|
|
|
GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5134
Location: Singapore
Followers: 9
Kudos [?]:
87
[0], given: 0
|
I'll go with C. If the monach butterfly caterpillars feed at other parts of the season when pollen is not released from the maize plant, then they would not get milkweed leaves laced with natural insecticide, and thus would not die.
|
|
|
|
|
|
Director
Joined: 14 Jul 2004
Posts: 714
Followers: 1
Kudos [?]:
3
[0], given: 0
|
OA please...Ttar please post the OA.
If someone else knows the OA please post.
|
|
|
|
|
|
Director
Joined: 07 Nov 2004
Posts: 511
Followers: 2
Kudos [?]:
1
[0], given: 0
|
yaa, C.
because the stem already states that insecticide contained in pollen can kill butterfly caterpillars, so B is irrelevant.
|
|
|
|
|
|
Manager
Joined: 12 Jul 2003
Posts: 198
Followers: 1
Kudos [?]:
1
[0], given: 0
|
another one for c.
caterpillars eat===>>>die
caterpillars dont eat===>>happily live
Best.. 
|
|
|
|
|
|
Manager
Joined: 21 Apr 2005
Posts: 189
Location: Atlanta , GA
Followers: 2
Kudos [?]:
1
[0], given: 0
|
Another 'C'
for the same reason as Doloris gave
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Moderators:
metallicafan, rajeevrks27, souvik101990, PTK, MacFauz, noboru, kissthegmat, carcass, willigetmylifeback, mikemcgarry, doe007, Vercules, Legendaddy, tuanquang269, RaviChandra, Marcab, Narenn
|
close
