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Kaplan CAT 1 - SC 3

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jordan23: Senior | Next Rank: 100 Posts; Posts: 81; Joined: Thu Oct 08, 2009 1:02 pm; Thanked: 4 times; GMAT Score:690

by jordan23 » Wed Apr 18, 2012 2:21 am

New, strong varieties of antibiotics show the potential to kill a harmful bacterium without the unintended effects of killing benign bacteria and development of resistant strains of bacteria by earlier high-strength varieties.

1) unintended effects of killing benign bacteria and the development of resistant strains of bacteria by earlier high-strength varieties
2) unintended effects by earlier high-strength varieties of development of resistant strains and killing benign bacteria
3)unintended effects for the development of resistant strains of bacteria and killing benign bacteria of earlier high-strength varieties
4) development of resistant strains of bacteria and killing of benign bacteria that were required by earlier high-strength varieties
5)killing of benign bacteria and development of resistant strains of bacteria, which were unintended effects of earlier high-strength varieties

I am having such a humongous trouble understanding the Kaplan CAT SC questions, one such Q is given above.
OA E

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Source: Beat The GMAT — Sentence Correction | Wed Apr 18, 2012 2:21 am

bubbliiiiiiii: Legendary Member; Posts: 979; Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members; Location: Hyderabad, India; Thanked: 49 times; GMAT Score:700

by bubbliiiiiiii » Wed Apr 18, 2012 2:31 am

jordan23 wrote:New, strong varieties of antibiotics show the potential to kill a harmful bacterium without the unintended effects of killing benign bacteria and development of resistant strains of bacteria by earlier high-strength varieties.

1) unintended effects of killing benign bacteria and the development of resistant strains of bacteria by earlier high-strength varieties - changes meaning; wordiness
2) unintended effects by earlier high-strength varieties of development of resistant strains and killing benign bacteria - parallelism issue.
3)unintended effects for the development of resistant strains of bacteria and killing benign bacteria of earlier high-strength varieties - - parallelism issue.
4) development of resistant strains of bacteria and killing of benign bacteria that were required by earlier high-strength varieties - gramatically fine but changes intended meaning.
5)killing of benign bacteria and development of resistant strains of bacteria, which were unintended effects of earlier high-strength varieties

I am having such a humongous trouble understanding the Kaplan CAT SC questions, one such Q is given above.
OA E

Regards,

Pranay

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jordan23: Senior | Next Rank: 100 Posts; Posts: 81; Joined: Thu Oct 08, 2009 1:02 pm; Thanked: 4 times; GMAT Score:690

by jordan23 » Wed Apr 18, 2012 2:37 am

In (B), you have cited parallelism issue because Development and Killing are used, but this same parallel structure is used in E as well. Killing and Development, then why is E correct and not B?

bubbliiiiiiii wrote:
jordan23 wrote:New, strong varieties of antibiotics show the potential to kill a harmful bacterium without the unintended effects of killing benign bacteria and development of resistant strains of bacteria by earlier high-strength varieties.

1) unintended effects of killing benign bacteria and the development of resistant strains of bacteria by earlier high-strength varieties - changes meaning; wordiness
2) unintended effects by earlier high-strength varieties of development of resistant strains and killing benign bacteria - parallelism issue.
3)unintended effects for the development of resistant strains of bacteria and killing benign bacteria of earlier high-strength varieties - - parallelism issue.
4) development of resistant strains of bacteria and killing of benign bacteria that were required by earlier high-strength varieties - gramatically fine but changes intended meaning.
5)killing of benign bacteria and development of resistant strains of bacteria, which were unintended effects of earlier high-strength varieties

I am having such a humongous trouble understanding the Kaplan CAT SC questions, one such Q is given above.
OA E

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bubbliiiiiiii: Legendary Member; Posts: 979; Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members; Location: Hyderabad, India; Thanked: 49 times; GMAT Score:700

by bubbliiiiiiii » Wed Apr 18, 2012 2:40 am

In (B), you have cited parallelism issue because Development and Killing are used, but this same parallel structure is used in E as well. Killing and Development, then why is E correct and not B?

In Option E, considering parallelism, article 'the' before development is also applicable to killing (verb) making it 'the killing' (gerund). Thus, E is parallel.

Hope it helps.

Regards,

Pranay

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scholardream: Senior | Next Rank: 100 Posts; Posts: 83; Joined: Fri May 06, 2011 9:08 am; Thanked: 5 times; GMAT Score:610

by scholardream » Sun Oct 21, 2012 7:28 pm

Hi Jordan,
Could you please explain to me "Which" in E refer to what?
"Which" refers to "the killing of benign bacteria" or "development of resistant strains of bacteria" or Both?
I though "which" after the comma should ONLY refer to the NEAREST noun, in this case, "which" refers to only "development of resistant strains of bacteria"

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bubbliiiiiiii: Legendary Member; Posts: 979; Joined: Tue Apr 14, 2009 1:38 amFollowed by: 12 members; Location: Hyderabad, India; Thanked: 49 times; GMAT Score:700

by bubbliiiiiiii » Sun Oct 21, 2012 11:12 pm

scholardream wrote:Hi Jordan,
Could you please explain to me "Which" in E refer to what?
"Which" refers to "the killing of benign bacteria" or "development of resistant strains of bacteria" or Both?
I though "which" after the comma should ONLY refer to the NEAREST noun, in this case, "which" refers to only "development of resistant strains of bacteria"

Though not Jordan, thought I could answer your query.

Here we go,

New, strong varieties of antibiotics show the potential to kill a harmful bacterium without the killing of benign bacteria and development of resistant strains of bacteria, which were unintended effects of earlier high-strength varieties.

'which' in the post above refers to 'the killing of benign bacteria and development of resistant strains of bacteria'.

Regards,

Pranay

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gmat2805: Junior | Next Rank: 30 Posts; Posts: 24; Joined: Mon Mar 12, 2012 9:03 am; Thanked: 1 times

by gmat2805 » Sat Aug 03, 2013 4:43 am

Hi Pranay how can which refer to the actions . Is this some sort of gerund so that's why we are referring with "which" ?

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