Although the turtle has been toothless for more than 150 : GMAT Sentence Correction (SC)
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# Although the turtle has been toothless for more than 150

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Although the turtle has been toothless for more than 150 [#permalink]

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30 Sep 2008, 20:49
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Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers
If you have any questions
you can ask an expert
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Re: SC [#permalink]

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30 Sep 2008, 21:32
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ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

IMO E

In X the moderately sharp and jagged edges of horny jaws function as teeth.
( it clear that we are talking about X's horny jaws .. We need not to refer with possesive pronoun.. )

D) Y [of horny jaws] function as Z do. "Y" not || "Z do "
E) Y [of horny jaws] function as Z. Y ||Z
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Re: SC [#permalink]

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30 Sep 2008, 20:55
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ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

(E) for me. function for teeth is unidiomatic. "function as teeth" is idiomatic.
"do" in (D) is unnecessary.
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Re: SC [#permalink]

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01 Oct 2008, 11:37
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Nihit wrote:
x2suresh wrote:
Guys,

both D and E are gramatically correct.
But, E is logical here.

E)
horny jaws function as teeth
-->horny jaws act as teeth
--> horny jaws=teeth.

D)
horny jaws function as teeth do.
we are comparing "horny jaws" function as "teeth" function..
Author is not trying to say this..

as , because and since introduce a reason clause and hence E is out . The only thing to consider here would be parallelism in C and D .

I will take another example.

(1) This Computer functions as TV.
Here it means..this computer itself serves as TV
(2) This Computer functions as TV functions..
here we are comparing functions of Computer with functions of TV
both are gramatically correct. Depends on the context we need to choose the option.

In the original question, author is clearly saying "contemporary turtle species don't have teeth and horny jaws serve as teeth.

Any takers.
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Re: SC [#permalink]

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30 Sep 2008, 23:40
leonidas wrote:
ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

(E) for me. function for teeth is unidiomatic. "function as teeth" is idiomatic.
"do" in (D) is unnecessary.

Agree with you, also 'their' is the pronoun for 'species', so C is eliminated.
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Re: SC [#permalink]

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01 Oct 2008, 01:35
I think this is an example of verb comparison. I m confused b/w C and D. BUt D would be my choice.
ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

Last edited by ritula on 01 Oct 2008, 15:58, edited 1 time in total.
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Re: SC [#permalink]

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01 Oct 2008, 03:50
It should be D , jaws function as teeth do( function)
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Re: SC [#permalink]

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01 Oct 2008, 09:52
as...do

D

A - their
B & C - pronoun error, its
E - as...what? there is no comparision
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Re: SC [#permalink]

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01 Oct 2008, 11:01
Guys,

both D and E are gramatically correct.
But, E is logical here.

E)
horny jaws function as teeth
-->horny jaws act as teeth
--> horny jaws=teeth.

D)
horny jaws function as teeth do.
we are comparing "horny jaws" function as "teeth" function..
Author is not trying to say this..
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Re: SC [#permalink]

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01 Oct 2008, 11:15
x2suresh wrote:
Guys,

both D and E are gramatically correct.
But, E is logical here.

E)
horny jaws function as teeth
-->horny jaws act as teeth
--> horny jaws=teeth.

D)
horny jaws function as teeth do.
we are comparing "horny jaws" function as "teeth" function..
Author is not trying to say this..

as , because and since introduce a reason clause and hence E is out . The only thing to consider here would be parallelism in C and D .
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Re: SC [#permalink]

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01 Oct 2008, 11:39
check the webster dictionary..

an attributive noun functions as an adjective

[url]http://www.merriam-webster.com/dictionary/function[2][/url]
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Re: SC [#permalink]

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01 Oct 2008, 11:41
ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

Turtles are toothless, to say HJ function as teeth do implies that T has teeth.

HJ function as teeth means HJ replace teeth and provide the same functionality
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Re: SC [#permalink]

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01 Oct 2008, 16:04
statement says moderately sharp and jagged edges of horny jaws function

icandy wrote:
ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

Turtles are toothless, to say HJ function as teeth do implies that T has teeth.

HJ function as teeth means HJ replace teeth and provide the same functionality
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Re: SC [#permalink]

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01 Oct 2008, 16:20
ritula wrote:
statement says moderately sharp and jagged edges of horny jaws function

icandy wrote:
ast wrote:
Although the turtle has been toothless for more than 150 million years, in some contemporary turtle species the moderately sharp and jagged edges of their horny jaws function for teeth.

A. their horny jaws function for teeth

B. its horny jaws function for teeth

C. its horny jaws function as do teeth

D the horny jaws function as teeth do

E the horny jaws function as teeth

Please explain your answers

Turtles are toothless, to say HJ function as teeth do implies that T has teeth.

HJ function as teeth means HJ replace teeth and provide the same functionality

yeap you are right..

previous posts ..you can replace.. horny jaws with edges..

Answer is same..

edges serves as teeth.
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Re: SC   [#permalink] 01 Oct 2008, 16:20
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# Although the turtle has been toothless for more than 150

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