Tough SC from GMAT sets

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gmatmachoman: Legendary Member; Posts: 2326; Joined: Mon Jul 28, 2008 3:54 amFollowed by: 2 members; Thanked: 173 times; GMAT Score:710

by gmatmachoman » Fri Jul 23, 2010 10:13 am

The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably on a spectrum of genetic relatedness.

A. The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternaltwin pairs, namely they vary considerably

B. That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably

C. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternaltwin pairs, namely considerable variation

D. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation

E. Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

R&D on GMAT algorithm:

https://www.beatthegmat.com/r-d-on-gmat- ... tml#305739

Source: Beat The GMAT — Sentence Correction | Fri Jul 23, 2010 10:13 am

tomada: Master | Next Rank: 500 Posts; Posts: 406; Joined: Mon Jan 25, 2010 11:36 amFollowed by: 4 members; Location: Syracuse, NY; Thanked: 23 times; GMAT Score:740

by tomada » Fri Jul 23, 2010 10:21 am

IMO B.

uwhusky: Legendary Member; Posts: 1172; Joined: Wed Apr 28, 2010 6:20 pmFollowed by: 4 members; Thanked: 74 times

by uwhusky » Fri Jul 23, 2010 10:41 am

Whew, this is a tough one.

My first question was what "namely..." suppose to be follow with? Namely + a noun phrase?

https://www.merriam-webster.com/dictionary/namely

Main Entry: nameÂ·ly
Pronunciation: \ËˆnÄ�m-lÄ“\
Function: adverb
Date: 14th century

: that is to say : to wit

Does that mean namely is like an appositive signifier?

If it should be followed with a noun phrase, then "they vary considerably" cannot follow "namely" because that's actually a clause. Therefore "that they vary considerably" is the only choice that can follow namely because it's a noun clause.

Beyond that, C and D has ambiguous "it" as the subject following the modifier clause, E might have a meaning issue by using "because", and "the fact of" is suspect, I have to verify if such preposition usage is proper.

clock60: Legendary Member; Posts: 759; Joined: Mon Apr 26, 2010 10:15 amFollowed by: 3 members; Thanked: 85 times

by clock60 » Fri Jul 23, 2010 10:48 am

i know that tomada is never wrong but A
between A and B

uwhusky: Legendary Member; Posts: 1172; Joined: Wed Apr 28, 2010 6:20 pmFollowed by: 4 members; Thanked: 74 times

by uwhusky » Fri Jul 23, 2010 10:53 am

After some more reading, I think the preposition usage "the fact of..." is incorrect, because it highlights "fact" as something else about the the object of preposition.

For example, "the fact of life" is not discussing life, but rather certain aspects of life, namely fact. <--oh hey, I used namely! =).

So I believe that "the fact of..." could be used to eliminate A.

clock60: Legendary Member; Posts: 759; Joined: Mon Apr 26, 2010 10:15 amFollowed by: 3 members; Thanked: 85 times

by clock60 » Fri Jul 23, 2010 11:03 am

i also confused with fact of...
but some questions about B
to start the sentence with that... clause is awkward, while acceptable,
while in most OG problems is used in the meaning at the same time
and highlights as verb for the subject i think must be highlight
can somebody clarify?

uwhusky: Legendary Member; Posts: 1172; Joined: Wed Apr 28, 2010 6:20 pmFollowed by: 4 members; Thanked: 74 times

by uwhusky » Fri Jul 23, 2010 11:14 am

You're right, highlight is the main verb of the clause.

That... is called a "that clause", and it is simply a noun clause that can be used as a subject, an object, and pretty much anywhere a noun can be placed.

In this case, "that..." is the subject noun, thus highlight(s) is showing the right tense.

neerajbansal: Senior | Next Rank: 100 Posts; Posts: 61; Joined: Fri Feb 19, 2010 10:12 am; Thanked: 3 times

by neerajbansal » Fri Jul 23, 2010 2:34 pm

The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably
on a spectrum of genetic relatedness.

A. The fact of some fraternal twins resembling each other greatly and others looking quite dissimilar highlights an interesting and often overlooked feature of fraternal twin pairs, namely they vary considerably

The fact of some -- is wrong...it should be "The fact that some....."

B. That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably
Cream of the crap. What's the OA..

C. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it highlights an interesting and often overlooked feature of fraternaltwin pairs, namely considerable variation
It --> what does it refers to..??

D. With some fraternal twins resembling each other greatly and others looking quite dissimilar, it is a fact that highlights an interesting and often overlooked feature of fraternal-twin pairs, namely a considerable variation
It is a fact ---> is it talking about the preceding sentence or the next sentence...

E. Because some fraternal twins resemble each other greatly and others look quite dissimilar, this fact highlights an interesting and often overlooked feature of fraternal-twin pairs, namely they vary considerably

This relates to what...there is no main subject to which this fact erodes to...

uwhusky: Legendary Member; Posts: 1172; Joined: Wed Apr 28, 2010 6:20 pmFollowed by: 4 members; Thanked: 74 times

by uwhusky » Fri Jul 23, 2010 2:36 pm

LOL. "Cream of the crop" and "cream of the crap" make a huge difference.

kvcpk: Legendary Member; Posts: 1893; Joined: Sun May 30, 2010 11:48 pmFollowed by: 7 members; Thanked: 215 times

by kvcpk » Fri Jul 23, 2010 2:51 pm

Though I chose B, I couldnt convince myself the right reasons for choosing B.
Found this thread that answers my queries.

https://www.beatthegmat.com/the-fact-of- ... 26570.html

adi_800: Legendary Member; Posts: 544; Joined: Thu Oct 08, 2009 9:14 amFollowed by: 2 members; Location: Pune, India; Thanked: 31 times

by adi_800 » Sat Jul 24, 2010 2:37 am

800 bob file has this Sc discussed ...

PFA

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