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og17 sc750 32 species

This topic has 3 expert replies and 4 member replies
toro86717498 Junior | Next Rank: 30 Posts
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og17 sc750 32 species

Wed Jul 27, 2016 8:00 pm
The 32 species that make up the dolphin family are closely related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods.

A) include the animal known as the killer whale, which can grow t be 30 feet long and is

B) include the animal known as the killer whale, growing as big as 30 feet long and

C) include the animal known as the killer whale, growing up to 30 feet long and being

D) includes the animal known as the killer whale, which can grow as big as 30 feet long and is

E) includes the animal known as the killer whale, which can grow to be 30 feet long and it is

Does anyone can explain (A), why there is a comma before which? Is "..as the killer whale which can grow to be..." correct?

AbdurRakib Junior | Next Rank: 30 Posts
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Target GMAT Score:
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Tue Aug 09, 2016 3:08 am
toro86717498 wrote:
The 32 species that make up the dolphin family are closely related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods.

A) include the animal known as the killer whale, which can grow t be 30 feet long and is

B) include the animal known as the killer whale, growing as big as 30 feet long and

C) include the animal known as the killer whale, growing up to 30 feet long and being

D) includes the animal known as the killer whale, which can grow as big as 30 feet long and is

E) includes the animal known as the killer whale, which can grow to be 30 feet long and it is

Does anyone can explain (A), why there is a comma before which? Is "..as the killer whale which can grow to be..." correct?
yeas it is.

COMMA + WHICH automatically refer to the immediate noun.If it doesn't make sense logically the "which" could refer to the far noun.

Remembering this will develop common sense that GMAT frequently tests.For example, Different use "which":
"""Which"" can do either of these things.

(a)New treatments for cancer, which are often prohibitively expensive, are only seldom covered by medical insurance.
(""which"" = ""new treatments for cancer"")

(b)New treatments for cancer, which ranks among the leading causes of death in North America, are a high priority for research budget administrators.
(""which"" = ""cancer"")

_________________
What is of supreme importance in war is to attack the enemy's strategy.

AbdurRakib Junior | Next Rank: 30 Posts
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Posted:
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Target GMAT Score:
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Tue Aug 09, 2016 3:10 am
toro86717498 wrote:
The 32 species that make up the dolphin family are closely related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods.

A) include the animal known as the killer whale, which can grow t be 30 feet long and is

B) include the animal known as the killer whale, growing as big as 30 feet long and

C) include the animal known as the killer whale, growing up to 30 feet long and being

D) includes the animal known as the killer whale, which can grow as big as 30 feet long and is

E) includes the animal known as the killer whale, which can grow to be 30 feet long and it is

Does anyone can explain (A), why there is a comma before which? Is "..as the killer whale which can grow to be..." correct?
yeas it is.

COMMA + WHICH automatically refer to the immediate noun.If it doesn't make sense logically the "which" could refer to the far referent .

Remembering this will develop common sense that GMAT frequently tests.For example, Different use "which":
"""Which"" can do either of these things.

(a)New treatments for cancer, which are often prohibitively expensive, are only seldom covered by medical insurance.
(""which"" = ""new treatments for cancer"")

(b)New treatments for cancer, which ranks among the leading causes of death in North America, are a high priority for research budget administrators.
(""which"" = ""cancer"")

_________________
What is of supreme importance in war is to attack the enemy's strategy.

GMAT/MBA Expert

ceilidh.erickson GMAT Instructor
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Fri Jul 29, 2016 6:15 am
Dependent clauses beginning with "which" are always considered NON-ESSENTIAL modifiers (in modern American English, anyway. This rule has changed over time, and you will see different usages of "which" if you read 18th or 19th century prose such as Jane Austen, for example. On the GMAT, this will be consistent). A non-essential modifier will be set between commas.

In fact, the only time that there should not be a comma before "which" is if it is the object of a preposition: to which..., for which..., etc.

In general, though, you shouldn't worry about commas on the GMAT. An answer in SC will never be wrong simply because there's a comma there that shouldn't be, or there isn't one that should be. The only bits punctuation that are consistently tested are SEMICOLONS and COLONS.

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ceilidh.erickson GMAT Instructor
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Fri Jul 29, 2016 6:24 am
For a breakdown of each answer choice:

The 32 species that make up the dolphin family are closely related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods.
A) include the animal known as the killer whale, which can grow t be 30 feet long and is
B) include the animal known as the killer whale, growing as big as 30 feet long and
C) include the animal known as the killer whale, growing up to 30 feet long and being
D) includes the animal known as the killer whale, which can grow as big as 30 feet long and is
E) includes the animal known as the killer whale, which can grow to be 30 feet long and it is

Whenever an underlined portion begins with a verb in the present tense, look for SUBJECT-VERB AGREEMENT. The subject of the sentence is "species":
The 32 species (that make up the dolphin family) are (closely) related to whales and (in fact) include the animal known as the killer whale...

The verb should be the plural "include." Eliminate D and E.

Next, look at the modifier: "which can grow" or "growing." A modifier beginning with "which" must always modify the noun (or noun phrase) directly before it. Since the killer whale is the thing growing 30 ft, this noun modifier makes sense.

A modifier beginning with a present participle like "growing," when following a comma, must be an ADVERBIAL modifier - it must modify the verb / the entire clause before it. Here's an example of this used correctly:
The 32 species of the dolphin family are related to whales and include the killer whale, making them a diverse and interesting group of animals.
Here, the phrase beginning with "making" modified the entire clause before it.

In the original sentence, though, "growing" does not correctly modify the clause "the species are related and include." We want it to be a noun modifier, not an adverbial modifier. Eliminate B and C.

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Ceilidh Erickson
Manhattan Prep GMAT & GRE instructor
EdM in Mind, Brain, and Education

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ceilidh.erickson GMAT Instructor
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Fri Jul 29, 2016 8:52 am
For more on "which," here's a fun video I just saw from the New Yorker Magazine: https://thescene.com/watch/thenewyorker/whichcraft

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Ceilidh Erickson
Manhattan Prep GMAT & GRE instructor
EdM in Mind, Brain, and Education

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toro86717498 Junior | Next Rank: 30 Posts
Joined
26 Jul 2016
Posted:
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Sat Jul 30, 2016 11:51 pm
Hi, Ceilidh

Irene Orleansky Newbie | Next Rank: 10 Posts
Joined
08 Aug 2016
Posted:
1 messages
Mon Aug 08, 2016 1:14 am
In answers B and C ', growing ...' is a participial modifier, and therefore relates to the subject 'the 32 species'. In A the relative pronoun ',which... ' relates to the preceding noun the killer whale. We use a comma because it is an extra information relative clause, that is, it does not provide any essential information for understanding what the killer whale is.

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