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According to scientists at the University of California, the

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Manager
Joined: 31 Mar 2006
Posts: 162
According to scientists at the University of California, the [#permalink]

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06 May 2006, 00:24
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According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who
(E) indicates that everyone alive today might be a descendant from a single female ancestor who

Director
Joined: 17 Sep 2005
Posts: 903

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06 May 2006, 01:31
According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who
(E) indicates that everyone alive today might be a descendant from a single female ancestor who
Director
Joined: 17 Sep 2005
Posts: 903

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06 May 2006, 01:34
b14kumar wrote:
According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who
(E) indicates that everyone alive today might be a descendant from a single female ancestor who

It's between D and E since we need singular verb for 'the pattern'.
D is correct. 'descendant of' is correctly used.

According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicates that everyone alive today may be a descendant of a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.

Regards,
Brajesh
Director
Joined: 24 Oct 2005
Posts: 659
Location: London

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08 May 2006, 01:51
Btw D and E, I go with D.
Descendant of .. is better.
Or Descended From..
VP
Joined: 29 Apr 2003
Posts: 1403

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08 May 2006, 21:45
Sorry Missed it!! Thanks
Senior Manager
Joined: 29 Jun 2005
Posts: 403

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10 May 2006, 23:56
I think the answer is D, because in E descedant from is unidiomatic.

But the correct idiom is descend from.
Can anybody explain, where is the error in C? Is it the use of past perfect?
Director
Joined: 24 Oct 2005
Posts: 659
Location: London

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11 May 2006, 02:50
Dilshod wrote:
I think the answer is D, because in E descedant from is unidiomatic.

But the correct idiom is descend from.
Can anybody explain, where is the error in C? Is it the use of past perfect?

C says may indicate. The may is redundant here.
To indicate itself is to suggest that something is likely to happen. So a may before that is not required.
Senior Manager
Joined: 07 Mar 2006
Posts: 352

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11 May 2006, 05:56
I'll go with D.

Singular verb 'indicates' is needed.
Descendant of .. is correct.
Senior Manager
Joined: 12 Mar 2006
Posts: 365
Schools: Kellogg School of Management

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11 May 2006, 21:45
could someone explain why we choose indicates over indicate ?

doesnt 'pattern of changes that have.....' mean it is plural ?
Manager
Joined: 22 May 2005
Posts: 138

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11 May 2006, 23:03
nope ... we should look at "pattern"in pattern of changes as "group" in group of men ... here group is singular ... also C seems to be a wrong choice as "may" and "indicate" together pose a question mark on the observation .. it brings in some kind of negative effect there and also we unnecessary using past perfect.
So "D" is the unanimous choice ..
Manager
Joined: 02 Apr 2006
Posts: 93

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12 May 2006, 13:39
Confused bt D and E, as others are out by the S-V agreement, I get to close to D as seeing the discussion.. Then, amansingla4, can you inform us the OA?? I guess the discussion so far is enough.. Thank you for the Q &A~

amansingla4 wrote:
According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended from a single female ancestor who lived in Africa sometime between 140,000 and 280,000 years ago.
(A) indicate the possibility that everyone alive today might be descended from a single female ancestor who
(B) indicate that everyone alive today might possibly be a descendant of a single female ancestor who had
(C) may indicate that everyone alive today has descended from a single female ancestor who had
(D) indicates that everyone alive today may be a descendant of a single female ancestor who
(E) indicates that everyone alive today might be a descendant from a single female ancestor who

Re: SC-DNA   [#permalink] 12 May 2006, 13:39
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