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Recently documented examples of neurogenesis, the production of new br

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 28 Jul 2011, 05:00
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A. Incorrect - the brain growing in mice when placed in a stimulating environment
B. Incorrect - they can refer to canaries or neurons
C. Incorrect - canaries' neurons that increase when they learn new songs
D. Incorrect - neurons when they learn new songs
E. Correct

Baten80 wrote:
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 05 Nov 2011, 23:15
devinawilliam83 wrote:
Recently documentedc, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or vcanaries whose neurons increase when theyx[/color]
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

Why not b?



It is definitely not B because THEY in B is not clear - canaries whose neurons increase when they

Whether THEY refers to canaries or neurons.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Nov 2011, 09:40
devinawilliam83 wrote:
Recently documentedc, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

Why not b?


A is unclear
B - the production of new brain cells, include mice whose brains - need to talk about brain changes , this phrase alters the sense.
C - unclear reference (that and they)
D - says the brain growth when placed in simulationg env and increase in canaries without simulating env -- altered meaning.
E - explains the effects of mice's brain when placed in simulating env

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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nice question.
"the production of new brain cells" is just extra information. read the sentence without it.
Recently documented examples of neurogenesis, ...., include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.
The senetence speaks about neurogenesis which is a process/method/phenomena etc..not a animal or a part of human body.Hence neurogenesis should refer to the process which is "growth" (or "brain growth if you will").So we come down to only D and E.

D spekas about "when placed" as though it's time relevant ina conditional manner.So thats off the list.We are left with only E.

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Jul 2012, 01:48
after first analysis I shortlisted D and E
A-The brain growing ......neurons increasing seems incorrect to me

I got with Logical choice of E as it seems more logical brain growth and an increase look more logical

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Jul 2012, 07:30
..THE PRODUCTION....GROWTH...so,
Narrow down to (D)&(E)
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
THE BRAIN IS NOT NEEDED, THE INCREASE IS UN NECESSARY , THEY IS INCORRECT
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that
PERFECT
(E) wins
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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The first thing to notice here is that we are looking for examples of neurogenesis. Because neurogenesis is an activity, a kind of growth, neither mice nor their brains can be an example of neurogenesis. We can eliminate A - C for this reason. We can eliminate D because it has a modifier error. "When placed" is an adverbial modifier, and should therefore modify an action or clause. For instance, we might say "When placed in a stimulating environment, mice grow new brain cells," or "Mice grow new brain cells when placed in a stimulating environment." All we have to modify here is a noun phrase--"the brain growth"--so we should not use an adverbial modifier. Note that we have the same modifier in A, but it is wrong for a slightly different reason. There, we have "the brain growing," which can be interpreted as an action, but now when we apply "when placed in a stimulating environment," it looks like we are saying that [i]the brain,[i] rather than the mouse, is being placed in that environment.

Note that in E, we have a noun modifier--"that are placed in a stimulating environment." This correctly modifies "mice." In turn, the phrase "in mice" correctly modifies "brain growth" to provide an example of neurogenesis. The parallel portion about canaries works in exactly the same way.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 30 Jul 2012, 21:12
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

Although there are other errors (parallelism, pronouns, etc.) in the wrong choices, I would like to focus in the following:
In choices A and E (the OA), is there an important difference in meaning between "the brain growing" and "brain growth" in the context of the sentence?, In the same sense, is there an important difference in meaning between "neurons increasing" and "an increase in neurons"?

What's wrong with B? I know that sounds awkward to mention "mice" or "canaries" as examples of neurogenesis. But I don't think it is enough reason to eliminate them.

Despite my comments above, I agree that the OA is E. It is the best in comparison with the rest.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 30 Jul 2012, 23:02
metallicafan wrote:
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

Although there are other errors (parallelism, pronouns, etc.) in the wrong choices, I would like to focus in the following:
In choices A and E (the OA), is there an important difference in meaning between "the brain growing" and "brain growth" in the context of the sentence?, In the same sense, is there an important difference in meaning between "neurons increasing" and "an increase in neurons"?

What's wrong with B? I know that sounds awkward to mention "mice" or "canaries" as examples of neurogenesis. But I don't think it is enough reason to eliminate them.

Despite my comments above, I agree that the OA is E. It is the best in comparison with the rest.

Hi

The mice aren't the example - the example is the brain growth. That eliminates B and C. A also breaks parallelism.

There is another flaw with A, B, C and D. "when placed in a stimulating environment" sounds like they are referring only to the time that the mice are in the stimulating environment - but the brain growth is permanent. It doesn't shrink back down once the mice are no longer in the stimulating environment.

Hope this clarifies
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 31 Jul 2012, 01:03
IMO;

It's all about the voice in which the sentence is presented, "...the production of new brain cells..."is in passive voice ,this is describing "neurogenesis" and it is completely alright to mention scientific discoveries to mention in passive voice where the "doer"is not as important as the "deed", for clarity- "who is producing the cells?" we do not know and we don't want to know but , the moment "include" appears in the sentence it takes our mind to search AC which is in the passive voice as well.
Hence, Brain growth and increase in neurons replaced brain growing and neuron increasing.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that

Seems like the 'brain' is being disembodied and placed in a stimulating environment.

B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they

The 'they' is ambiguous in both cases: it could refer to 'brains' or 'mice', and in the second case it could refer to 'neurons' or 'canaries.'

C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they

Same pronoun ambiguity with 'they.'

D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they

Sounds as if the 'brain growth' is placed in a stimulating environment.

E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

The pronoun ambiguity issue is cleared up here: 'that' clearly refers to 'mice' and the second 'that' refers to canaries. Therefore (E) is the answer.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 03 Aug 2012, 13:46
metallicafan wrote:
Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

A. the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that
B. mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
C. mice's brains that grow when they are placed in a stimulating environment or canaries' neurons that increase when they
D. the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they
E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

Although there are other errors (parallelism, pronouns, etc.) in the wrong choices, I would like to focus in the following:
In choices A and E (the OA), is there an important difference in meaning between "the brain growing" and "brain growth" in the context of the sentence?, In the same sense, is there an important difference in meaning between "neurons increasing" and "an increase in neurons"?

What's wrong with B? I know that sounds awkward to mention "mice" or "canaries" as examples of neurogenesis. But I don't think it is enough reason to eliminate them.

Despite my comments above, I agree that the OA is E. It is the best in comparison with the rest.


Great question.
On A - Parallelism issue. However, I do not find any difference between the brain growing and the growth of brain. Since, both are a part of recent documentations and hence are okay as both - Continuous tense & a normal factual statement.
Now, on the right choices-Very close call between B and E. Very Very close... E may have a small upper hand probably because of no pronoun usage(although the usage in A is justified and there is no rule that says pick an answer without pronoun). Besides, E uses lesser number of words to convey that B and that should be fine.
I find more importantly, in B the documents do not contain the mice or canaries, but rather the growth/action...
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 04 Aug 2012, 08:23
@ Vishalsaraogi

I am afraid that there is no such rule as the pronoun that cannot refer to a noun. As long as that is a pronoun, it has to refer to a noun. Perhaps, what you intend may be as follow.

The pronoun that should not be used to refer to human beings in preference to who; secondly the pronoun that sometimes is used to refer to singular things, while to denote plural things, those is preferred.

Further, mice Is a plural word; mouse is its singular.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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athirasateesh wrote:
nice question sanju ..can u elucidate the difference b/w D and E


Hi there,

Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.

Here is the difference between choice D and choice E:

Choice D: the brain growth in mice when placed in a stimulating environment or the increase in canaries' neurons when they: According to this choice, “brain growth” is placed in a stimulating environment. This is illogical because it is the mice that are put in such environment. Again, pronoun “they” refers to “neurons”, meaning that neurons learn new songs. This is illogical. Note that pronoun “they” cannot refer to “canaries’” because it is an adjective an not a noun. For these reasons choice D is incorrect.

Choice E. brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that: Correct. In this choice, the first “that” correctly refers to “mice” and the second “that” to “canaries”.

Hope this helps. :)
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 06 Feb 2013, 23:58
Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.
Here the sentence above is corret but i wanted to know how the "brain growth in mice that are placed in a stimulating is corrct!! Becoz brain growth which is singular the how come plural are fits into the sentence ..can some one pls calrify ..
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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skamal7 wrote:
Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.
Here the sentence above is corret but i wanted to know how the "brain growth in mice that are placed in a stimulating is corrct!! Becoz brain growth which is singular the how come plural are fits into the sentence ..can some one pls calrify ..


Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.

Here in the sentence, I am not considering the extra info. The sentence becomes: Recently documented examples of neurogenesis include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.

See here, the issue is meaning. Ask yourself-is it possible to keep the "brain growth" in a stimulating environment? IMO its illogical. Now again ask yourself- is it possible to keep the mice in stimulating environment? Perhaps yes.
Here the "that" refers to mice and not the "brain growth".

Hope that helps.
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Feb 2013, 02:53
anshunadir wrote:
That can refer only the preceding noun. in this sentence, noun preceding "That" is mice(plural) and therefore, plural verb "are" is used.


I just wanted to clarify the usage of that. As you have rightly pointed one of the usage.

1. That can be used to relate to the noun preceding it. When it does so then "that" becomes subject of the following clause.
2. It connects two clauses.

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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Feb 2013, 03:16
Quote:
I just wanted to clarify the usage of that. As you have rightly pointed one of the usage.

1. That can be used to relate to the noun preceding it. When it does so then "that" becomes subject of the following clause.
2. It connects two clauses.


And here are the examples:

1. when "that" refers to the preceding noun, then it becomes the subject of the following dependent clause. e.g. as in the current sentence
...include brain growth in mice that are placed in a stimulating environment...
here you can replace "that" with mice => mice are placed in a stimulating environment

2. connect two clauses
e.g. It is hard to believe that XYZ has won the best performance award
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 07 Feb 2013, 06:09
skamal7 wrote:
Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.
Here the sentence above is corret but i wanted to know how the "brain growth in mice that are placed in a stimulating is corrct!! Becoz brain growth which is singular the how come plural are fits into the sentence ..can some one pls calrify ..


Hi Skamal,

Good explanations above by Marcab and anshunadir. Adding another way to understand the relative clause.

For understanding lets remove the that clauses.

original sentence: Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that learn new songs.

Recently documented examples of neurogenesis, the production of new brain cells, include brain growth in mice or an increase in neurons in canaries.

the "that clause" after mice is providing additional information about mice. ie where they are placed or in what environment the experiment takes place. The other "that clause" provides additional information about canaries.

Hope that helps

Vercules
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Re: Recently documented examples of neurogenesis, the production of new br [#permalink]

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New post 01 Mar 2013, 03:04
Obviously, the two things included in the research: brain growth and increase in neurons and not "mice and canaries" or "brains". Hence, we eliminate B and C.

Now, "brain growing" is just horrible compared to brain grown. Hence, eliminate A.

We are now left with D and E. Both refers correctly to brain growth and increase in canaries' neurons but we our tie breaker would be the modifiers.

In D, "when placed in a stimulating env" correctly modifies mice. This is also correct in choice E.
In D, "when they learn new songs" modifies neurons. That is obviously wrong. Eliminate D.

Answer: E
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Re: Recently documented examples of neurogenesis, the production of new br   [#permalink] 01 Mar 2013, 03:04

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