Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

A new genetically engineered papaya GMAT PREP

Expert replies
by needthis » Fri Jul 15, 2011 10:18 am
A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

(A) produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but
(B) produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but
(C) produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by
(D) not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by
(E) not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by


Can someone explain to me where I should place the NOT, before or after the verb?
was not produced by sounds better to me than was produced not by

Ans C
Join the discussion
Source: — Sentence Correction |

by aspirant2011 » Fri Jul 15, 2011 10:28 am
needthis wrote:A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

(A) produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but
(B) produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but
(C) produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by
(D) not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by
(E) not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by


Can someone explain to me where I should place the NOT, before or after the verb?
was not produced by sounds better to me than was produced not by

Ans C
For this specific sentence u should place the not after verb produced because if u see the latter part of sentence them produced comes in ellipsis form i.e

Produced not by but [produced] by

A and B u can simply reject
D wrong because of the wrong usage of was with which as companies are plural
E wrong bec to refer to companies we shouldnt use who.......
Join the discussion

by GMATGuruNY » Sat Jul 16, 2011 2:30 am
needthis wrote:A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

(A) produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but
(B) produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but
(C) produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by
(D) not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by
(E) not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by


Can someone explain to me where I should place the NOT, before or after the verb?
was not produced by sounds better to me than was produced not by

Ans C
Where a modifier is placed changes the meaning.

In D and E:
Not PRODUCED by seed companies.
Not modifies the verb: not THIS VERB but THAT VERB.
For example:
Not PRODUCED by seed companies but CONSUMED by seed companies.
Not PRODUCED by seed companies but OFFERED by seed companies.

Since the SC above is not comparing one action of seed companies to another action of seed companies, the placement of not before PRODUCED is incorrect.
Eliminate D and E.

Produced not BY SEED COMPANIES.
Not modifies the prepositional phrase: produced not BY THIS but BY THAT.
Produced not BY SEED COMPANIES but BY RESEARCHERS.
This is the intended meaning of the SC above.

In A, not by seed companies...but university and United States Department of Agriculture researchers lacks parallelism. Eliminate A.

In B, not by profit-motivated seed companies...but university and United States Department of Agriculture researchers lacks parallelism. Eliminate B.

The correct answer is C.

Only C offers the correct -- and parallel -- comparison:

...produced not by profit-motivated seed companies...but by university and United States Department of Agriculture researchers...
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Join the discussion

by aspirant2011 » Sat Jul 16, 2011 9:06 am
GMATGuruNY wrote: ...produced not by profit-motivated seed companies...but by university and United States Department of Agriculture researchers...
Hi Mitch,

I have one doubt on above i.e is produced after but in second part of the sentence in ellipsis i.e

produced not by profit-motivated seed companies...but [produced] by university and United States Department of Agriculture researchers...[/b]
Join the discussion

by needthis » Sat Jul 16, 2011 11:36 pm
Makes sense!
Thanks to you both!
Join the discussion