Like the color-discriminating apparatus of the human eye, : GMAT Sentence Correction (SC)
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# Like the color-discriminating apparatus of the human eye,

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Like the color-discriminating apparatus of the human eye, [#permalink]

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10 Jul 2008, 13:24
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76% (01:44) correct 24% (01:30) wrong based on 208 sessions

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487. Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.
(A) insects’ eyes depend on
(B) an insect eye depends on
(C) that of insects depend on the
(D) that of an insect’s eye depends on
(E) that of an insect’s is dependent on the
[Reveal] Spoiler:
D

why B is not correct. Please explain. .

Thanks
[Reveal] Spoiler: OA

Last edited by JarvisR on 05 Sep 2016, 23:00, edited 5 times in total.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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10 Jul 2008, 13:29
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B is not correct because the subject of the first part is "color-discriminating apparatus" and not "human eye"

D compares correctly and hence the ans IMO
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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10 Jul 2008, 13:37
i agree with D. in order to compare apples and apples, you have to compare apparatus of a human eye to apparatus of an insect eye.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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10 Jul 2008, 14:13
The first segment of the statement mentions the color-discriminating apparatus of the human eye. So, the second segment should also mention a part of the insects' eye. Only then would the comparison be appropriate.
"that of an insect's eye" correctly compares the color-discriminating apparatuses. Hence D is correct

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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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10 Jul 2008, 18:03
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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11 Jul 2008, 07:48
pallavi79us wrote:
487. Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.
(A) insects’ eyes depend on
(B) an insect eye depends on
(C) that of insects depend on the
(D) that of an insect’s eye depends on
(E) that of an insect’s is dependent on the

why B is not correct. Please explain. .

Thanks

C) is out, Subject verb agreement. Depends should replace depend
A) B) are wrong, it is compareing the color-discriminating apparatus to the insets' eye
E) is wordy, "the" is not correct.

Ans is D
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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11 Jul 2008, 09:13
Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.

(A) insects’ eyes depend on -> compare apparatus of human eye with that of insects' and not insects' eye itself.-> eliminate
(B) an insect eye depends on -> eliminate -> same reason as above
(C) that of insects depend on the -> the is misleading .Apparatus of insect eyes and not insects.eliminate
(D) that of an insect’s eye depends on ->CORRECT
(E) that of an insect’s is dependent on the -> the is misleadig again.eliminate

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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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11 Jul 2008, 09:23
Original sentence has following issues

1) comparing apparatus with insects' eyes
2) depend is plural but the verb required is singular

D corrects both these problems
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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01 Jul 2010, 05:55
Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.

(A) insects’ eyes depend on - wrong comparison
(B) an insect eye depends on - wrong comparison
(C) that of insects depend on the - 'insects' what???
(D) that [the color-discriminating apparatus] of an insect’s eye depends on - correct
(E) that of an insect’s is dependent on the - 'insects's' what???
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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07 Sep 2010, 23:25
D for me as well
aparatus must be compared to aparatus.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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20 Feb 2012, 20:15
isn't "that of a X's" wrong?? at the least as per MGMAT SC guide?
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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20 Feb 2012, 23:16
D is the correct answer as it correctly compares color-discriminating apparatus of the human eye and insect's eye.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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28 Feb 2012, 08:46
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schandok wrote:
isn't "that of a X's" wrong?? at the least as per MGMAT SC guide?

You are correct, that of X's is wrong.

But in the problem at hand we are essentially saying

the color-discriminating apparatus of eye of the insect. (insect's is modifying eye).

The following usage would be incorrect:

that of the eye's

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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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28 Feb 2012, 14:33
Apparatus of human eye should get compared with that of insect's.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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24 Mar 2012, 23:18
d for me............but i feel use of like is not proper
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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03 Aug 2013, 23:09
Like the color-discriminating apparatus of the human eye

"That" refers to the color-discriminating apparatus So A and B are out

C has insects we need to compare human eye and insect eye

D is correct

Can anyone explain Option E is it incorrect cos it changes the intended meaning of the sentence?
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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03 Aug 2013, 23:34
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fozzzy wrote:
Like the color-discriminating apparatus of the human eye

"That" refers to the color-discriminating apparatus So A and B are out

C has insects we need to compare human eye and insect eye

D is correct

Can anyone explain Option E is it incorrect cos it changes the intended meaning of the sentence?

Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.

(E) that of an insect’s is dependent on the

E is incorrect because you cannot say " that of an insect’s": it's a "double" possessive. You can say (generally speaking) " that of an insect" or "insect's" to express possession, but you cannot use both. Moreover "That" should point to "apparatus " and E looks like this:
(E) that(apparatus) of an insect’s is dependent on the you want to compare the apparatus of the eye (not of the insect in general).
Example: you want to compare the size of the moon to something, you can say "like that of the moon" or "like the moon's": "like that of the moon's" is incorrect.

D)that of an insect’s eye == that of an eye of an insect. Here the double possessive is fine because the last one (insect’s) refers to the eye, where in E(and in my example) both forms pointed to the same thing.

Hope it's clear
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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04 Aug 2013, 04:21
pallavi79us wrote:
487. Like the color-discriminating apparatus of the human eye, insects’ eyes depend on recording and comparing light intensities in three regions of the electromagnetic spectrum.
(A) insects’ eyes depend on
(B) an insect eye depends on
(C) that of insects depend on the
(D) that of an insect’s eye depends on
(E) that of an insect’s is dependent on the
[Reveal] Spoiler:
D

why B is not correct. Please explain. .

Thanks

Hi guys,

lets examine each choice independently:

A) This choice incorrectly compared "color-discriminating apparatus of the human eye" with the "insects eye". Incorrect
B) Like the prevoius choice, B is also incorrect
C) In this choice 'that' is correctly used [ That= color-discriminating apparatus ] but we need color-discriminating apparatus of insect's eys not insect itself!. So cross off C
D) Everything looks fine and the comparison is logical. Big contender!
E) This choice used double possesive. For sure no one likes double possesive so it's incorrect and ilogical.

So Pick D

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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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04 Aug 2013, 07:12
First I also chose B, but by going through the explanations, D is the correct ans. Good question.
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Re: Like the color-discriminating apparatus of the human eye, [#permalink]

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14 Jul 2016, 10:53
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