Find all School-related info fast with the new School-Specific MBA Forum

It is currently 17 Apr 2014, 07:55

STARTING SHORTLY:

Dealing with a Ding - Webinar by GMATClub and Admissionado Consulting.


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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The brains of identical twins are genetically identical.

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Director
Director
User avatar
Affiliations: FRM Charter holder
Joined: 02 Dec 2006
Posts: 736
Schools: Stanford, Chicago Booth, Babson College
Followers: 5

Kudos [?]: 14 [0], given: 4

GMAT Tests User
The brains of identical twins are genetically identical. [#permalink] New post 12 Apr 2007, 23:37
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

100% (02:40) correct 0% (00:00) wrong based on 1 sessions
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin’s brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.

If the statements on which the conclusion above is based are all true, each of the following could be true EXCEPT:
(A) People who lack a genetic susceptibility for the disease will not develop schizophrenia.
(B) Medications can control most of the symptoms of schizophrenia in most patients but will never be able to cure it.
(C) The brains of schizophrenics share many of the characteristics found in those of people without the disorder.
(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.
(E) Brain abnormalities associated with schizophrenia are the result of childhood viral infections that inhibit the development of brain cells.

I know that this question was posted before. Please forgive me for posting it again. However, tapping new brains is not a bad idea :wink:
SVP
SVP
User avatar
Joined: 08 Nov 2006
Posts: 1560
Location: Ann Arbor
Schools: Ross '10
Followers: 12

Kudos [?]: 158 [0], given: 1

GMAT Tests User
Re: LSAT CR: The brains of identical twins [#permalink] New post 12 Apr 2007, 23:53
aurobindo wrote:
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin’s brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.

If the statements on which the conclusion above is based are all true, each of the following could be true EXCEPT:
(A) People who lack a genetic susceptibility for the disease will not develop schizophrenia.
(B) Medications can control most of the symptoms of schizophrenia in most patients but will never be able to cure it.
(C) The brains of schizophrenics share many of the characteristics found in those of people without the disorder.
(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.
(E) Brain abnormalities associated with schizophrenia are the result of childhood viral infections that inhibit the development of brain cells.

I know that this question was posted before. Please forgive me for posting it again. However, tapping new brains is not a bad idea :wink:


Tough one for me.

The brains of identical twins are genetically identical.

Given the argument above, D must be false.

(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.

[/b]
Manager
Manager
Joined: 28 Feb 2007
Posts: 198
Location: California
Followers: 2

Kudos [?]: 4 [0], given: 0

GMAT Tests User
Re: LSAT CR: The brains of identical twins [#permalink] New post 13 Apr 2007, 00:02
aurobindo wrote:
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin’s brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.

If the statements on which the conclusion above is based are all true, each of the following could be true EXCEPT:
(A) People who lack a genetic susceptibility for the disease will not develop schizophrenia.
(B) Medications can control most of the symptoms of schizophrenia in most patients but will never be able to cure it.
(C) The brains of schizophrenics share many of the characteristics found in those of people without the disorder.
(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.
(E) Brain abnormalities associated with schizophrenia are the result of childhood viral infections that inhibit the development of brain cells.

I know that this question was posted before. Please forgive me for posting it again. However, tapping new brains is not a bad idea :wink:


I am stuck between B and D
Nothing is said about medications so B seems to be false
But D seems false too as The brains of identical twins are genetically identical.

Not sure.
Senior Manager
Senior Manager
Joined: 27 Jul 2006
Posts: 299
Followers: 1

Kudos [?]: 6 [0], given: 0

GMAT Tests User
 [#permalink] New post 13 Apr 2007, 05:22
I feel most able to answer this question being an identical twin myself.

Clearly we are looking for an answer that deals with genetics (otherwise why choose identical twins)

D states that it will be possible to look at genetics ALONE to determine people who will contract the disease...in that case both twins would have developed schizophrenia. Here only one got it...

B is not correct based on the idea of medication. Medication will not be able to cure physical damage. If someone cuts off my finger, there is no way for me to have it grow back through medication. So also since schizophrenia is a physical ailment, medication will never be able to cure it completely.
VP
VP
User avatar
Joined: 22 Oct 2006
Posts: 1443
Schools: Chicago Booth '11
Followers: 7

Kudos [?]: 141 [0], given: 12

GMAT Tests User
 [#permalink] New post 13 Apr 2007, 07:09
im going with D here

it says twins have identical genes, but it also states that one can get the disease and one cant

so there would be no way ever of knowing whether or not you can get the disease from genes alone based on those statements since you can get the disease with IDENTICAL genes



DDDDDDDDD
Director
Director
Joined: 23 Jun 2005
Posts: 847
GMAT 1: 740 Q48 V42
Followers: 3

Kudos [?]: 18 [0], given: 1

GMAT Tests User
Re: LSAT CR: The brains of identical twins [#permalink] New post 13 Apr 2007, 08:01
The brains of identical twins are genetically identical. When only one of a pair of identical twins is a schizophrenic, certain areas of the affected twin’s brain are smaller than corresponding areas in the brain of the unaffected twin. No such differences are found when neither twin is schizophrenic. Therefore, this discovery provides definitive evidence that schizophrenia is caused by damage to the physical structure of the brain.

(D) It will eventually be possible to determine whether or not someone will develop schizophrenia on the basis of genetic information alone.

Highlighted part in D directly contradicts the highlighted part in the passage and hence could never be true.


Anand
Manager
Manager
Joined: 23 Mar 2007
Posts: 177
Followers: 0

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 15 Apr 2007, 07:04
another D
Manager
Manager
User avatar
Joined: 02 Apr 2006
Posts: 158
Followers: 1

Kudos [?]: 1 [0], given: 0

GMAT Tests User
 [#permalink] New post 17 Apr 2007, 19:29
I will go with A as this choice directly contradicts the statements in the question. Please post OA
Intern
Intern
Joined: 28 Feb 2007
Posts: 35
Followers: 1

Kudos [?]: 0 [0], given: 0

 [#permalink] New post 18 Apr 2007, 00:33
Very tough one!
OA is D
Manager
Manager
Joined: 20 Nov 2006
Posts: 215
Followers: 1

Kudos [?]: 5 [0], given: 0

GMAT Tests User
Re: LSAT CR: The brains of identical twins [#permalink] New post 20 Apr 2007, 21:07
The answer D.
Re: LSAT CR: The brains of identical twins   [#permalink] 20 Apr 2007, 21:07
    Similar topics Author Replies Last post
Similar
Topics:
New posts The brains of identical twins are genetically identical. boksana 8 17 Jul 2004, 14:16
New posts The brains of identical twins are genetically identical. Geethu 2 24 Aug 2004, 14:44
Popular new posts The brains of identical twins are genetically identical. vineetgupta 10 06 Dec 2006, 04:58
Popular new posts 1 Experts publish their posts in the topic The brains of identical twins are genetically identical. az780 16 12 Feb 2008, 00:58
New posts 3 The brains of identical twins are genetically identical. Nihit 5 23 Sep 2008, 10:15
Display posts from previous: Sort by

The brains of identical twins are genetically identical.

  Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group and phpBB SEO

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®.