Sentence Correction

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

Whats wrong with D?

use of ';' means the second half should be complete and related to first half
IMO A

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.

bubbliiiiiiii wrote:Whats wrong with D?

different than is the wrong idiom, correct idiom is different from

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.

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?

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.

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.