116.
(A).
According to the passage, T cells need a large repertoire of receptors
in order to be able to recognize a wide variety of pathogens. The passage goes
on to say that “[r]elying only on a genetically encoded repertoire would be
disadvantageously limiting—analogous to having only a few dozen language
phrases with which to respond to the nearly infinite potential combinations of
words in a conversation. Instead, the repertoire is generated by a process of
genetic recombination … ” According to this analogy, the language phrases
are the repertoire of receptors; just as a speaker must respond to a nearly
infinite body of language combinations, T cells must also have a large
repertoire so they can respond to a wide variety of pathogens. This repertoire
is increased through genetic recombination. Choice (A) is correct. Note that
choice (B) is out of scope, choice (C) is the exact opposite of what is being
described, choice (D) is a distortion based on another analogy in the passage
(also, an analogy on the GRE would not be “meant to elucidate”
another
analogy!), and choice (E) refers to the first paragraph, not the analogy in
question.
117.
1st only.
In the analogy referenced, the “language phrases” are receptors
that can respond to various pathogens. The “nearly infinite potential
combinations of words” is what a speaker must respond to—the reason a
speaker needs a wide repertoire of language. Similarly, the wide variety of
pathogens is the reason T cells need such a wide variety of receptors. This
supports the first statement only.
118.
Dostları ilə paylaş: