According to scientists at the University of California, the : GMAT Sentence Correction (SC)
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# According to scientists at the University of California, the

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According to scientists at the University of California, the [#permalink]

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05 May 2006, 23:24
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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

Please explain
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06 May 2006, 00:31
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
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06 May 2006, 00:34
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
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08 May 2006, 00:51
Btw D and E, I go with D.
Descendant of .. is better.
Or Descended From..
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08 May 2006, 20:45
Sorry Missed it!! Thanks
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10 May 2006, 22:56
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?
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11 May 2006, 01:50
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.
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11 May 2006, 04:56
I'll go with D.

Singular verb 'indicates' is needed.
Descendant of .. is correct.
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11 May 2006, 20:45
could someone explain why we choose indicates over indicate ?

doesnt 'pattern of changes that have.....' mean it is plural ?
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11 May 2006, 22:03
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 ..
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Re: SC-DNA [#permalink]

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12 May 2006, 12:39
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

Please explain
Re: SC-DNA   [#permalink] 12 May 2006, 12:39
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# According to scientists at the University of California, the

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