Scientists have recently discovered that the ultrathin, : GMAT Sentence Correction (SC)
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# Scientists have recently discovered that the ultrathin,

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Scientists have recently discovered that the ultrathin, [#permalink]

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01 Jul 2004, 00:10
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Scientists have recently discovered that the ultrathin, layered construction of a butterflyâ€™s wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling the insect to control how much heat energy is absorbed by its wings and how much is reflected away.

A.wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling

B: wings, which is the same one that makes some butterflies shimmer via the phenomenon of iridescence, that also enables

C: wings is the same as the one that makes some butterflies shimmer via the phenomenon of iridescence, enabling

D: wingsâ€”the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enables

E: wingsâ€”of the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enable
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01 Jul 2004, 02:32
I am voting for C.
Actually it is a tie between C & D. The "also" in D makes the meaning slightly different.

For "the ultrathin, layered construction of a butterflyâ€™s " is singular
A - "are" is grammatically wrong
E - "enable" is grammatically wrong
B - "that" is redundantly used
D - "also" distorts the meaning.

Do let me know the OA.

alert_wf wrote:
Scientists have recently discovered that the ultrathin, layered construction of a butterflyâ€™s wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling the insect to control how much heat energy is absorbed by its wings and how much is reflected away.

A.wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling

B: wings, which is the same one that makes some butterflies shimmer via the phenomenon of iridescence, that also enables

C: wings is the same as the one that makes some butterflies shimmer via the phenomenon of iridescence, enabling

D: wingsâ€”the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enables

E: wingsâ€”of the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enable

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01 Jul 2004, 06:15
my FA is D
I have rejected all other options based on the subj.-verb agreement.

Scientists have discovered <B>the ultrathin, layered construction</B>

the part in bold is singular and hence "also enables" should follow
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01 Jul 2004, 07:24
I go with D as well...much clearer one among the choices..
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01 Jul 2004, 08:48
1 min.
D is best IMO. C actually changes the meaning as I don't believe that "iridescence" allows any heat retention. Rather, I believe that the "layered construction of the wings" allows that phenomenon
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Re: SC [#permalink]

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01 Jul 2004, 12:43
D is correct

A.wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling

should be is (subj: construction)

B: wings, which is the same one that makes some butterflies shimmer via the phenomenon of iridescence, that also enables

not idiomatic (should be same as ...)

C: wings is the same as the one that makes some butterflies shimmer via the phenomenon of iridescence, enabling

changes meaning

E: wingsâ€”of the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enable

should be enables
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01 Jul 2004, 13:48
alert_wf wrote:
Scientists have recently discovered that the ultrathin, wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling the insect to control how much heat energy is absorbed by its wings and how much is reflected away.

A: wings, the same as the one making some butterflies shimmer via the phenomenon of iridescence, are enabling

B: wings, which is the same one that makes some butterflies shimmer via the phenomenon of iridescence, that also enables

C: wings is the same as the one that makes some butterflies shimmer via the phenomenon of iridescence, enabling

D: wingsâ€”the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enables

E: wingsâ€”of the same construction that makes some butterflies shimmer via the phenomenon of iridescenceâ€”also enable

I will go with D for several reasons

-There should be an agreement between ultrathin and enalbes.

-layered construction of a butterflyâ€™s wings is the noun clause that defines ultrathin

-the same construction that makes some butterflies shimmer via the phenomenon of iridescence, if a pronoune is used in this cluase, it will be confusing, is it refering to wing or construction. so the best way is to indicate the noun it self.

I hope my explaination will helps.[/b]
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01 Jul 2004, 17:18
OA is D, I choose C as well.
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06 Jul 2004, 00:16
Good observation.
My wrong answer was due to my technical background;-) that led to unnecessary extrapolation.

BTW what is IMO?

Paul wrote:
1 min.
D is best IMO. C actually changes the meaning as I don't believe that "iridescence" allows any heat retention. Rather, I believe that the "layered construction of the wings" allows that phenomenon

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[#permalink] 06 Jul 2004, 00:16
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# Scientists have recently discovered that the ultrathin,

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