"Dogs are bred for looks" ...Always
yeah. or at least that's the way things are in this day and age (with no obvious potential for change).
"Dogs are being bred for looks"...Sometimes
not "sometimes". this construction means that the action
is actually happening in the timeframe of the sentence.
e.g.
the sun comes up in the east. --> this happens every single day, and isn't going to step happening anytime soon.
if you wanted to tell someone how to tell which direction is east, you'd use this sentence.
vs.
the sun is coming up in the east. --> this means that the sun is coming up RIGHT NOW as you are narrating the sentence.
2. even though both "for looks"(a "prepositional phrase" acting here as an "adverb of reason" for verb "bred") and "to meet.."(an "infinitive" acting here as an "adverb of purpose" for verb "bred") are adverbs only, the structure is different in both i.e., one is a "Prepositional phrase" and other is an "Infinitive".
Is such parallelism(in which it is only the "function" of a phrase(as Adjective/Adverb/Noun)that is made parallel instead of its "structure") very often in GMAT?
i can't read that sentence. too many parentheses.
but, what i think you're asking is, "are we going to see parallel structures in which the things don't look exactly like each other?"
the answer is yes.
remember, though, that you won't ever have to judge parallelism on an absolute basis. i.e., you won't have to come up with an "ideal" sentence.
instead, you'll only have to
judge parallelism RELATIVE TO OTHER CHOICES.
this should be good news, since it's much easier to judge 2 things relative to each other than to come up with some abstract ideal.
e.g.
check out #50 in the DIAGNOSTIC section of og11, og12, or og13 (the diagnostic section is the same in all three books).
in that example, you have "just as frequently AND in the same way..."
those don't look ilke each other, but, as you said here, they both describe the same action -- that is, both of them function as adverbs. therefore, they're parallel.
more to the point --
if you look at the other choices, you won't find anything better. that's all you really need here.