BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Some anthropologists believe that the genetic homogeneity

This topic has expert replies
Post new topic Locked
Previous Topic Next Topic
Moderator
Posts: 772
Joined: Wed Aug 30, 2017 6:29 pm
Followed by:6 members

Some anthropologists believe that the genetic homogeneity

by BTGmoderatorRO » Wed Mar 14, 2018 11:05 am
Some anthropologists believe that the genetic homogeneity evident in the world's people is the result of a "population bottleneck"-at some time in the past our ancestors suffered an event, greatly reducing their numbers and thus our genetic variation.

(A) at some time in the past our ancestors suffered an event, greatly reducing their numbers
(B) that at some time in the past our ancestors suffered an event that greatly reduced their numbers
(C) that sometime in the past our ancestors suffered an event so that their numbers were greatly reduced
(D) some time in the past our ancestors suffered an event from which their numbers were greatly reduced
(E) some time in the past, that our ancestors suffered an event so as to reduce their numbers greatly,
OA is b

What is the correct answer here? can any expert help me out here?
Thanks
Top
Source: — Sentence Correction |
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pm
Location: New York, NY
Thanked: 13060 times
Followed by:1906 members
GMAT Score:790

by GMATGuruNY » Fri Mar 16, 2018 5:44 am
Roland2rule wrote:Some anthropologists believe that the genetic homogeneity evident in the world's people is the result of a "population bottleneck"-at some time in the past our ancestors suffered an event, greatly reducing their numbers and thus our genetic variation.

(A) at some time in the past our ancestors suffered an event, greatly reducing their numbers
(B) that at some time in the past our ancestors suffered an event that greatly reduced their numbers
(C) that sometime in the past our ancestors suffered an event so that their numbers were greatly reduced
(D) some time in the past our ancestors suffered an event from which their numbers were greatly reduced
(E) some time in the past, that our ancestors suffered an event so as to reduce their numbers greatly,
A COMMA + VERBing modifier is attributed to the SUBJECT of the preceding clause.
In A, reducing seems to refer to our ancestors, implying that OUR ANCESTORS were greatly reducing their numbers.
Not the intended meaning: our ancestors did not reduce their own numbers.
The intended meaning is that an EVENT greatly reduced their numbers.
Eliminate A.

So that (in C) and so as (in E) imply PURPOSE.
The result is a strange meaning: that our ancestors suffered for the PURPOSE of reducing their numbers.
Not the intended meaning.
Eliminate C and E.

In D, which seems to refer to an event, implying that our ancestors' numbers were reduced FROM an event -- a nonsensical meaning.
Eliminate D.

The correct answer is B.
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
Top
Post new topic Locked
• Page 1 of 1