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Antigenic shift refers to

by sameerballani » Mon Jun 06, 2011 8:46 am
Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.
A)influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza
B)influenza, different than the natural mutation of a single strain, known as antigenic drift
C)influenza, in contrast to the natural mutation of a single strain, known as antigenic drift
D)influenza, different than antigenic drift, which refers to the natural mutation of a single strain of influenza
E)influenza; in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

OA:A
Please comment whether the following additional option is correct or not.

F)influenza, in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

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by bubbliiiiiiii » Mon Jun 06, 2011 8:53 am
Whats wrong with D?
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by cans » Mon Jun 06, 2011 8:53 am
use of ';' means the second half should be complete and related to first half
IMO A
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by gauravgundal » Mon Jun 06, 2011 8:58 am
Initally I got down to E,but after analyzing careful I found E a wrong answer choice.
IMO: A

The part after and before semicolon must be an independent clause/sentence.

B. Comparison issue.
C. same as B.
D. different than is incorrect .It should be different from or better to say.. Antigenic shift refers... and is different from antigenic drift.
E. As stated above ,the part after semicolon in E is not a clause/sentence.
...which refers... modifies antigenice drift.
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by aspirant2011 » Mon Jun 06, 2011 9:01 am
bubbliiiiiiii wrote:Whats wrong with D?
different than is the wrong idiom, correct idiom is different from
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by Frankenstein » Mon Jun 06, 2011 9:16 am
sameerballani wrote:Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.

Please comment whether the following additional option is correct or not.

F)influenza, in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

Thanks
Hi,
I think F is incorrect too. I think the usage of 'in contrast to ...' in F implies that antigenic shift is compared with influenza(noun)/two different strains of influenza(noun phrase). But, the purpose of the sentence is to show contrast between Antigenic shift and Antigenic drift.
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by sameerballani » Mon Jun 06, 2011 10:51 am
Frankenstein wrote:
sameerballani wrote:Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.

Please comment whether the following additional option is correct or not.

F)influenza, in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

Thanks
Hi,
I think F is incorrect too. I think the usage of 'in contrast to ...' in F implies that antigenic shift is compared with influenza(noun)/two different strains of influenza(noun phrase). But, the purpose of the sentence is to show contrast between Antigenic shift and Antigenic drift.
However, I feel the comparison is between Antigenic shift and Antigenic drift only.
That is why i created this additional option. Are you sure about your comment?
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by Frankenstein » Mon Jun 06, 2011 11:12 am
sameerballani wrote:
Frankenstein wrote:
sameerballani wrote:Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.

Please comment whether the following additional option is correct or not.

F)influenza, in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

Thanks
Hi,
I think F is incorrect too. I think the usage of 'in contrast to ...' in F implies that antigenic shift is compared with influenza(noun)/two different strains of influenza(noun phrase). But, the purpose of the sentence is to show contrast between Antigenic shift and Antigenic drift.
However, I feel the comparison is between Antigenic shift and Antigenic drift only.
That is why i created this additional option. Are you sure about your comment?
Hi,
On first look, that appeared OK even to me. I cant assure you. If I were sure, I wouldn't use 'I think'. It's just my opinion. It would be great if experts can respond.
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by GMATGuruNY » Tue Jun 07, 2011 8:28 am
sameerballani wrote:Antigenic shift refers to the combination of two different strains of influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza.
A)influenza; in contrast, antigenic drift refers to the natural mutation of a single strain of influenza
B)influenza, different than the natural mutation of a single strain, known as antigenic drift
C)influenza, in contrast to the natural mutation of a single strain, known as antigenic drift
D)influenza, different than antigenic drift, which refers to the natural mutation of a single strain of influenza
E)influenza; in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

OA:A
Please comment whether the following additional option is correct or not.

F)influenza, in contrast to antigenic drift, which refers to the natural mutation of a single strain of influenza

Thanks
In F, it is unclear what exactly is in contrast to antigenic drift. It must be clear what a modifier is modifying. Thus, F would be incorrect if it were offered as an answer choice.
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