GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Jul 2018, 00:36

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Before learning how to make a synthetic growth hormone, scientists had

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

2 KUDOS received
Intern
Intern
avatar
B
Joined: 13 Oct 2017
Posts: 8
Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 07:07
2
8
00:00
A
B
C
D
E

Difficulty:

  85% (hard)

Question Stats:

40% (01:05) correct 60% (01:06) wrong based on 250 sessions

HideShow timer Statistics

Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

(A) learning how to make a synthetic growth hormone, scientists had to remove it painstakingly

(B) scientists learned how to make a synthetic growth hormone, they removed it painstakingly

(C) scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly

(D) scientists learned how to synthesize the growth hormone, it had to be painstakingly removed

(E) learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists
Board of Directors
User avatar
G
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 3653
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 07:55
ToponepercentGMAT wrote:
Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

A. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
B. scientists learned how to make a synthetic growth hormone, they removed it painstakingly
C. scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly
D. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
E. learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists

Correct answer must be (D) for the highlighted errors in other options...
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Expert Post
2 KUDOS received
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6262
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 08:00
2
ToponepercentGMAT wrote:
Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

A. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
B. scientists learned how to make a synthetic growth hormone, they removed it painstakingly
C. scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly
D. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
E. learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists



Hi,
lets see the errors

1) pronoun IT..
'It' should refer to 'GROWTH HORMONE', but here ambiguously refers to 'SYNTHETIC growth hormone'
illogical in meaning, it is 'growth hormone' present in body and NOT 'synthetic growth hormone'
ONLY D and E use IT correctly

2) In E, " before....hormone" should be followed by SCIENTISTS as the clause is modifying scientists
eliminate E

D is correct as it is
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

GMAT Forum Moderator
avatar
V
Joined: 28 May 2014
Posts: 528
GMAT 1: 730 Q49 V41
GMAT ToolKit User Premium Member
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 08:11
Abhishek009 wrote:
ToponepercentGMAT wrote:
Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

A. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
B. scientists learned how to make a synthetic growth hormone, they removed it painstakingly
C. scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly
D. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
E. learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists

Correct answer must be (D) for the highlighted errors in other options...


Hi Abhishek009,

Can you please explain why A is wrong?
_________________

440 to 730: If I Can, You Can Too

Expert Post
Top Contributor
1 KUDOS received
Retired Moderator
User avatar
P
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 4465
Location: India
WE: Education (Education)
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 08:24
1
Top Contributor
2
Quote:
Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

A. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
B. scientists learned how to make a synthetic growth hormone, they removed it painstakingly
C. scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly
D. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
E. learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists


There are two ways to approach this issue.

1. The grammar way: We know as per the V-A-N rule, a verb prevails over adjective and a noun. Here the phrase 'synthetic hormone growth' is an adjective and inferior 'to synthesize the hormone growth' which is a verb. Therefore, A, B, and C are out.
Between D and E, E has a serious modification error in that, the noun Scientists should have been placed immediately after the comma. D is the correct choice.

2. The meaning way: It may be noted that a synthetic hormone is made only outside the body and not within the body. Choices A, B and C all erroneously point to the removal of the synthetic growth hormone from the pituitary glands, which are inside the living body; therefore, the first three choices are eliminated.
Now it is the choice between D and E, wherein as such the pronoun 'it' pointedly refers simply to the growth hormone. However, D is better than E because of the modification flaw in E.

_________________

you can know a lot about something and not really understand it."-- a quote
No one knows this better than a GMAT student does.
Narendran +9198845 44509

Manager
Manager
avatar
B
Joined: 23 Jun 2016
Posts: 127
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 13:30
daagh wrote:
Quote:
Before learning how to make a synthetic growth hormone, scientists had to remove it painstakingly in small amounts from the pituitary glands of human cadavers.

A. learning how to make a synthetic growth hormone, scientists had to remove it painstakingly
B. scientists learned how to make a synthetic growth hormone, they removed it painstakingly
C. scientists learned how to make a synthetic growth hormone, they had to remove it painstakingly
D. scientists learned how to synthesize the growth hormone, it had to be painstakingly removed
E. learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists


There are two ways to approach this issue.

1. The grammar way: We know as per the V-A-N rule, a verb prevails over adjective and a noun. Here the phrase 'synthetic hormone growth' is an adjective and inferior 'to synthesize the hormone growth' which is a verb. Therefore, A, B, and C are out.
Between D and E, E has a serious modification error in that, the noun Scientists should have been placed immediately after the comma. D is the correct choice.

2. The meaning way: It may be noted that a synthetic hormone is made only outside the body and not within the body. Choices A, B and C all erroneously point to the removal of the synthetic growth hormone from the pituitary glands, which are inside the living body; therefore, the first three choices are eliminated.
Now it is the choice between D and E, wherein as such the pronoun 'it' pointedly refers simply to the growth hormone. However, D is better than E because of the modification flaw in E.
''


Hi daagh

Could you share some examples of applying V-A-N rule -- preferably some other OG questions where this could be applied? I read it for the first time and would like to learn it.

Thanks
1 KUDOS received
Intern
Intern
avatar
Joined: 29 Sep 2014
Posts: 15
Location: United States
Schools: ISB '17 (A), IIMB (I)
GMAT 1: 650 Q49 V30
GMAT 2: 750 Q49 V42
GPA: 3.5
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 16:26
1
"remove" is the verb that has been defined as a "painstaking" process. So, it must precede it. "painstakingly in small amounts" is not correct. A, B, C are out.
E is flawed - the modifier (sentence before the comma) should modify "the scientists".
D is correct
_________________

Good luck!

Expert Post
Top Contributor
Retired Moderator
User avatar
P
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 4465
Location: India
WE: Education (Education)
Re: Before learning how to make a synthetic growth hormone, scientists had  [#permalink]

Show Tags

New post 14 Nov 2017, 21:11
Top Contributor
Dear Sevenplusplus
I will certainly. But l give me a couple of days to search
_________________

you can know a lot about something and not really understand it."-- a quote
No one knows this better than a GMAT student does.
Narendran +9198845 44509

Re: Before learning how to make a synthetic growth hormone, scientists had &nbs [#permalink] 14 Nov 2017, 21:11
Display posts from previous: Sort by

Before learning how to make a synthetic growth hormone, scientists had

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.