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# According to scientists at the University of California, the

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Manager
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Re: According to scientists at the University of California [#permalink]

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20 Feb 2010, 01:44
tejal777 wrote:
You guys might want to kill me but now I have a new querie:(
1."decendant from" is the right idiom i checked,so you guys are bang on on that.

I was reviewing the questions again and got a bit confused.

One of the substances that tell/[strike]tells[/strike]
One of the substances [strike]tells[/strike]/tell

Coming back to the original question,
the pattern of changes that have occurred
So the subject here becomes changes>Plural>>Indicate..

While One of the substances that tell/[strike]tells[/strike] is correct because restrictive "that" clause modifies the noun "substances", I don't think that One of the substances [strike]tells[/strike]/tell is correct. "One" is a pronoun here and it shoud be singular. So, there must be a mistake and the correct sentence is "One of the substances tells..."
Any thoughts are welcomed!

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

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20 Feb 2010, 21:34
indicates + descendant of

yah D...
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Re: According to scientists at the University of California [#permalink]

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20 Feb 2010, 22:30
I am just starting my prep and I selected D because it has to start with 'indicates' in this case and it sounded correct, but the additional detail on may and might given by others has given me a better way to look at it now...thank you

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

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30 Mar 2010, 23:25
great question!! lots of grammatical materials tested here

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

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09 Apr 2010, 11:30
good question...
Never thought I would need to split hairs between "may" and "might".
Thanks GMAT TIGER. You roared ...

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

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10 Apr 2010, 18:52
A very good question. my pick is (D).

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

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18 May 2010, 07:36
Very good question. Thanks for the explanation

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

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24 Jun 2010, 01:27
GMAT TIGER wrote:
Idiom Issue:

1. "descendant from" could be a correct idiom but that doesnot mean that "descendant of" is incorrect.
2. "descendant from" could be a correct idiom but that doesnot mean that "descendant from" is superior to "descendant of".
3. "descendant from" could be a correct idiom but that doesnot mean that it is properly used in the given context.
4. "descendant from" and "descendant of" both could equally be correct and properly be used in D and E, but if E has an obvious error (i.e. wrong verb "might"), then it is less likely to be the OA than D, which doesnot have that error.

tejal777 wrote:
You guys might want to kill me but now I have a new querie:(
1."decendant from" is the right idiom i checked, so you guys are bang on on that.

I was reviewing the questions again and got a bit confused.

One of the substances that tell/[strike]tells[/strike]
One of the substances [strike]tells[/strike]/tell

Coming back to the original question,
the pattern of changes that have occurred
So the subject here becomes changes>Plural>>Indicate..

SVA:

E. 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.

- Subject = the pattren - singular
- Verb = indicates - singular

"That" refers to "changes" and is a plural. Therefore "That" has a plural verb "have".

The folloings are both correct:

One of the substances that tell/[strike]tells[/strike]
One of the substances [strike]tells[/strike]/tell

tejal777 wrote:
６．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

GMATTIGER can you please elucidate the usage of "One of the" kind of sentences. I am quoting what i read in sahil notes:
‘one of the NOUN (this noun will always be plural) + that/who + PLURAL VERB'

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15 Aug 2010, 10:14
May expresses likelihood "we may go to the party", while might expresses a stronger sense of doubt "we might be able to go if our appointment is canceled"
or a contrary-to-fact hypothetical "we might have been able to go if George hadn't gotten held up"
( got this from a site called drgrammar.org )
Most of the time "might" is used with a conditional phrase e.g. "if our appointment is canceled"
For the question in hand: Choice is between D & E clearly other options use plural form for "pattern" / unnecessary past perfect form (as in option "C").
Now the pattern discovered by the scientists suggests a possibility and not create further doubt about the possibility. Therefore option "D" is correct.

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15 Aug 2010, 12:17
The Rorschach, test is gaining new respect as a diagnostic tool because it takes only one hour to expose behavior and thought processes that may be unlikely to emerge in other procedures or weeks of ordinary interviewing.

A) that may be unlikely to emerge in other procedures or weeks of ordinary interviewing
B) whose emergence is unlikely in other procedures or weeks of ordinary interviews
C) that might not emerge in other procedures or in weeks of ordinary interviews
D) that may not emerge under other procedures or weeks of ordinary interviews
E) likely not to emerge during weeks of ordinary interviewing or in other procedures

Similar issue!
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15 Aug 2010, 12:24
Agreed, similar issue! whats the OA for this one. I have chosen "D".

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16 Aug 2010, 11:28
D for the above SC and also the original SC!!

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16 Aug 2010, 11:34
It is C for the last one. According to an unofficial explanation, "might" is a legitimate substitute for "may". D is missing a preposition.
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16 Aug 2010, 12:49
'descendant of' is the correct idom.so I will go with D

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22 Aug 2010, 02:31
D D D.....
Indicates Vs Indicate (Check for "Pattern" and eliminate A B C !!!)
Descendant of Vs Descendant from (Correct Idiom "of", Eliminate E )
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22 Aug 2010, 08:54
D looks correct. I tot C initially. But yes. It did twist the meaning of the original sentence. Thks for pointing it out.

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

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16 Sep 2010, 23:54
GMAT TIGER wrote:
tejal777 wrote:
６． 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

OA:
[Reveal] Spoiler:
D

First of,S-V agreement.
S-pattern>singular,therefore indicateS should be used.
A,B,C>eliminate.
D,E remains.

Queries:
1. descendent of/from.Are'nt both correct?
2.may/might.For a future event which defines certanity?May?
3.Subject of the sentence is pattern.Agreed.Can someone explain WHY?While identifying a subject we ask the question "Who did the action"..Is'nt the answer "scientists"??

Subject, "the pattren", is singular that requires a singualr verb and that eliminates ABC.

Between D and E, they have 2 major difference:-

1. "may be" and "might be": Every one alive today - so needs "may". "Might" may also indicate past possibility but "may" only does so for present and future possibilities.

2. "descendant of" and "descendant from" - thats entirely about the correct idiom. "descendant of" is better than "decendent from".

But the verb "may/might" is the main reason that eliminates E and keeps D.

Agreed that "pattern of changes" is singular, then why does the question stem contain "pattern of changes that [highlight]have [/highlight]occurred".
Should it not be "changes that [highlight]has[/highlight]" occurred

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19 Oct 2010, 17:48
Can someone explain why A is incorrect? Thanks.

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19 Oct 2010, 20:24
HustleHarder wrote:
Can someone explain why A is incorrect? Thanks.

Subject-Verb Agreement.

Subject = the pattern (Singular)

Verb = indicate (plural)
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05 Nov 2010, 07:43
Pattern of... is singular. So we're left with D and E.
May is present tense and might is past tense of may and Author is talking about present. So IMO, answer should be D. Hope it helps.
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Re: May vs Might   [#permalink] 05 Nov 2010, 07:43

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