• EMPOWERgmat Slider
    1 Hour Free
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    EMPOWERgmat Slider
  • Varsity Tutors
    Award-winning private GMAT tutoring
    Register now and save up to $200

    Available with Beat the GMAT members only code

    MORE DETAILS
    Varsity Tutors
  • Magoosh
    Magoosh
    Study with Magoosh GMAT prep

    Available with Beat the GMAT members only code

    MORE DETAILS
    Magoosh
  • Veritas Prep
    Free Veritas GMAT Class
    Experience Lesson 1 Live Free

    Available with Beat the GMAT members only code

    MORE DETAILS
    Veritas Prep
  • PrepScholar GMAT
    5 Day FREE Trial
    Study Smarter, Not Harder

    Available with Beat the GMAT members only code

    MORE DETAILS
    PrepScholar GMAT
  • e-gmat Exclusive Offer
    Get 300+ Practice Questions
    25 Video lessons and 6 Webinars for FREE

    Available with Beat the GMAT members only code

    MORE DETAILS
    e-gmat Exclusive Offer
  • Target Test Prep
    5-Day Free Trial
    5-day free, full-access trial TTP Quant

    Available with Beat the GMAT members only code

    MORE DETAILS
    Target Test Prep
  • Economist Test Prep
    Free Trial & Practice Exam
    BEAT THE GMAT EXCLUSIVE

    Available with Beat the GMAT members only code

    MORE DETAILS
    Economist Test Prep
  • Kaplan Test Prep
    Free Practice Test & Review
    How would you score if you took the GMAT

    Available with Beat the GMAT members only code

    MORE DETAILS
    Kaplan Test Prep

2 SC questions

This topic has 1 expert reply and 1 member reply
jamesk486 Master | Next Rank: 500 Posts Default Avatar
Joined
28 Mar 2007
Posted:
141 messages
Followed by:
1 members
Upvotes:
2

2 SC questions

Post Sun Apr 01, 2007 10:38 pm
For some birds the sense of smell appears to play a role in navagation, since pigeons with surgically removed olfactory nerves were found to have increased difficulties in homing.
(A) were found to have increased difficulties
(B) have been found to have increased difficulty
(c) were found to have increasing difficulty
(D) had been found to have increased difficulties
(E) Have been found to have increasing difficulties

I'm not sure why the answer is (B)- is there a difference in difficulty/difficulties and have been found/ were found?

Unlike transplants between identical twins, whose genetic endowment is the same, all patients receiving hearts or other organs must take anti-rejection durgs for the rest of their lives.
(A) Unlike the transplants between identical twins, whose genetic endowment is the same
(B) Besides the transplant involving identical twins with the same genetic endowment
(C) Unless the transplant involves identical twins, who have the same genetic endowment
(D) Aside from a transplant between identical twins with the same genetic endowment
(E) Other than transplants between identical twins, whose genetic endowment is the same

The answer is C...I chose A...isn't it whose??

  • +1 Upvote Post
  • Quote
  • Flag
Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
Cybermusings Legendary Member Default Avatar
Joined
27 Mar 2007
Posted:
559 messages
Followed by:
2 members
Upvotes:
5
Top Reply
Post Tue Apr 03, 2007 12:21 am
Excellent...Thank you so much Stacey!

  • +1 Upvote Post
  • Quote
  • Flag

GMAT/MBA Expert

Stacey Koprince GMAT Instructor
Joined
27 Dec 2006
Posted:
2228 messages
Followed by:
680 members
Upvotes:
639
GMAT Score:
780
Top Reply
Post Mon Apr 02, 2007 10:32 pm
Please post the source for any questions you post. Particularly with SC, people really need to know the source to make sure they want to study the question - a lot of sources for SC aren't good enough to warrant study. Thanks! Smile

For the first one, the sentence starts in present tense ("appears") and indicates an "always true" type of situation. When the sentence then discusses why this is "always true," the appropriate tense is present perfect, which is used for something that started in the past but is still true or still going on today. "Were" is simple past, which means that event is over.

That eliminates A, C, and D. And "increasing difficulties" lets us eliminate E - the difficulties aren't continuing to increase over time.

For the second one, the original sentence indicates a comparison, but it is comparing "transplants" and "all patients." That isn't a logical comparison - you'd have to compare something like "transplants between identical twins" vs. "transplants between non-identical twins." A is eliminated.

B gives the wrong meaning (besides) and is not logical (it seems to say only those "identical twins with the same genetic endowment" but all identical twins are genetically the same). D has the same problem. E also tries to make a comparison ("other thhan transplants... all patients") but the comparison isn't logical.

Who vs. whose - one is the subject form and one is the possessive form. So, "whose genetic endowment" is okay b/c this is possessive. And "who have the same..." is fine too b/c this is a subject. Both versions are fine (as far as this issue is concerned).

_________________
Please note: I do not use the Private Messaging system! I will not see any PMs that you send to me!!

Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT

Contributor to Beat The GMAT!

Learn more about me

  • +1 Upvote Post
  • Quote
  • Flag
Thanked by: Raul007
Free Manhattan Prep online events - The first class of every online Manhattan Prep course is free. Classes start every week.

Best Conversation Starters

1 lheiannie07 116 topics
2 LUANDATO 67 topics
3 swerve 66 topics
4 ardz24 61 topics
5 AAPL 59 topics
See More Top Beat The GMAT Members...

Most Active Experts

1 image description Scott@TargetTestPrep

Target Test Prep

213 posts
2 image description Brent@GMATPrepNow

GMAT Prep Now Teacher

177 posts
3 image description Jeff@TargetTestPrep

Target Test Prep

168 posts
4 image description Rich.C@EMPOWERgma...

EMPOWERgmat

133 posts
5 image description GMATGuruNY

The Princeton Review Teacher

126 posts
See More Top Beat The GMAT Experts