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

It is currently 13 Dec 2018, 05:21

R1 Admission Decisions:

Stanford Chat (Calls Started)  |  Wharton Chat  (Calls Expected Soon)  |  Fuqua Chat (Calls Expected Soon)


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
Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
  • The winning strategy for 700+ on the GMAT

     December 13, 2018

     December 13, 2018

     08:00 AM PST

     09:00 AM PST

    What people who reach the high 700's do differently? We're going to share insights, tips and strategies from data we collected on over 50,000 students who used examPAL.
  • GMATbuster's Weekly GMAT Quant Quiz, Tomorrow, Saturday at 9 AM PST

     December 14, 2018

     December 14, 2018

     09:00 AM PST

     10:00 AM PST

    10 Questions will be posted on the forum and we will post a reply in this Topic with a link to each question. There are prizes for the winners.

Scientists took blood samples from two large, diverse groups of volunt

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

Hide Tags

Senior Manager
Senior Manager
User avatar
P
Joined: 07 Dec 2017
Posts: 289
Scientists took blood samples from two large, diverse groups of volunt  [#permalink]

Show Tags

New post 02 Sep 2018, 20:12
1
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

55% (02:01) correct 45% (01:54) wrong based on 49 sessions

HideShow timer Statistics

Journalist: Scientists took blood samples from two large, diverse groups of volunteers. All the volunteers in one group reported that they enjoyed eating vegetables, whereas all those in the other group disliked vegetables. When the blood samples from the group that disliked vegetables were analyzed, it was discovered that all the volunteers in that group had a gene in common, the XRV2G gene. This strongly suggests that a dislike of vegetables is, at least in some cases, genetically determined

The journalist's argument is most vulnerable to criticism on which one of the following grounds?

A. It presumes that all human traits are genetically determined.

B. It overlooks the possibility that the volunteers in one or both of the two groups may not have been representative of the human population as a whole in one or more respects.

C. It overlooks the possibility that even when one phenomenon always produces another phenomenon, the latter phenomenon may often be present when the former is absent.

D. It overlooks the possibility that even if a dislike of vegetables is genetically determined, it may be influenced by genes other than the XRV2G gene.

E. It takes for granted that the volunteers in the group that enjoyed eating vegetables did not also all have the XRV2G gene in common.

LSAT official
Senior Manager
Senior Manager
User avatar
P
Joined: 07 Dec 2017
Posts: 289
Re: Scientists took blood samples from two large, diverse groups of volunt  [#permalink]

Show Tags

New post 02 Sep 2018, 20:18
QUESTION TYPE: Flawed Reasoning

CONCLUSION: Genetics can make you dislike vegetables.

REASONING: Volunteers who don’t like vegetables have the XRV2G gene.

ANALYSIS: the false comparison.

We’re told that the vegetable hating group has XRV2G. But we’re not told about the group that likes vegetables. Maybe all of them also have XRV2G! A proper comparison must tell you about both groups, not just one.

___________

A. The argument didn’t say this. Something can’t be a flaw unless it happens. The argument just said one trait might be genetically determined. It didn’t say all traits are.

B. This answer plays on a misunderstanding of bias and representativeness in studies.

Let’s say you do a study designed to test whether a certain drug cures cancer. And all the subjects are American. Americans are unrepresentative of humans in many ways:

* They’re richer than average
* They live in a country that starts with ‘A’
* They watch more TV
* They have more internet access

C. All of those are unrepresentative, and none of them are relevant to the question of whether a drug cures cancer. So unrepresentativeness in one or more areas does not necessarily mean a study if flawed!
This means: mistaking a sufficient condition for a necessary condition. That’s not what happened in this argument.

D. This possibility would strengthen the argument! It’s not a flaw to overlook it. the conclusion was that genes may affect whether we like vegetables. So the more that genes affect our taste for vegetables, the better.

E. CORRECT. If everyone has the XRV2G gene, then it can’t affect vegetable tastes.
GMAT Club Bot
Re: Scientists took blood samples from two large, diverse groups of volunt &nbs [#permalink] 02 Sep 2018, 20:18
Display posts from previous: Sort by

Scientists took blood samples from two large, diverse groups of volunt

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


Copyright

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®.