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Ultrathin layer

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by Dean Jones » Sat Nov 26, 2011 10:50 pm
Dear Friends,

I was having problems in answering the following question.

Scientists have recently discovered that the ultrathin, layered construction of a
butterfly'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. wings-the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enables
E. wings-of the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enable


Please help.

OA after some discussions.

Regards
Deano.
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by patanjali.purpose » Sun Nov 27, 2011 3:19 am
Dean Jones wrote:Dear Friends,

I was having problems in answering the following question.

Scientists have recently discovered that the ultrathin, layered construction of a
butterfly'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. wings-the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enables
E. wings-of the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enable


Please help.

OA after some discussions.

Regards
Deano.
Subject of the clause 'the ultrathin, layered construction of a butterfly's wings' - is CONSTRUCTION.
Drop A/E. Drop B as there is no main verb

C vs D
D - use of ALSO (not required; nor mentioned in original sentence). Moreover, the use of THE SAME CONSTRUCTION is not as precise as C in which ONE is used to refer to CONSTRUCTION.

Moreover, ENABLING in C modifies clearly the clause 'The ultrathin...iridescence' and that means the ultrathin construction is enaling the insect to control X and Y (ie how much heat energy is absorbed by its wings and how much is reflected away)

IMO C
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by GMATGuruNY » Sun Nov 27, 2011 3:41 am
Dean Jones wrote:Dear Friends,

I was having problems in answering the following question.

Scientists have recently discovered that the ultrathin, layered construction of a
butterfly'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. wings-the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enables
E. wings-of the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enable


Please help.

OA after some discussions.

Regards
Deano.
In A and E, construction (singular) does not agree with the plural verbs are enabling (in A) and enable (in E). Eliminate A and E.

In B, construction (subject) lacks a verb. The result is a sentence fragment. Eliminate B.

In C, enabling (COMMA + VERBing) should modify the NEAREST preceding clause. But it makes no sense to say the one that makes SOME BUTTERFLIES shimmer...enabling THE INSECT to control: the implication is that THE INSECT refers to SOME BUTTERFLIES. Eliminate C.

The correct answer is D.
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by aspirant2011 » Sun Nov 27, 2011 10:04 am
Dean Jones wrote:Dear Friends,

I was having problems in answering the following question.

Scientists have recently discovered that the ultrathin, layered construction of a
butterfly'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. wings-the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enables
E. wings-of the same construction that makes some butterflies shimmer via the
phenomenon of iridescence-also enable


Please help.

OA after some discussions.

Regards
Deano.
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by amit2k9 » Sun Nov 27, 2011 8:21 pm
split is are enabling, enable and enables.
A,E POE.
usage of which is not correct in B. POE.
the same as one - does not have a clear referent wings or construction ? POE.

D is correct usage.
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by Dean Jones » Wed Nov 30, 2011 5:35 am
OA is option D
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by ranjeet75 » Wed Nov 30, 2011 7:16 am
Yes D is correct
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