DISCUSSION: It’s difficult to prephrase for most strongly supported questions, so just make sure to read each answer choice carefully and check it against the passage.
___________
- This could be true, but there’s nothing in the passage to suggest this.
- We don’t know about other researchers.
- We don’t know this.
- CORRECT. This is found in the final paragraph where it said Belcher and Hu’s research expanded and “ballooned” into the hundreds. We can assume from this that they’ve found more peptides to bind to those “20 more semiconductor materials”. If this isn’t the case, then their number of crystal-manipulating peptides wouldn’t have “ballooned”.
- We’re not concerned with other uses for peptides.
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