TBR sec bio 6, passage 10, question 60

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TBR sec bio 6, passage 10, question 60

Easily can eliminate A and B. But what is the difference between C and D? How would you know that if you are following EK bio?

Would be nice if you posted the question so everyone could see.

The passage tells you that monovalents are used. Answer C and D are the same thing except that C is actually answering the question while D is just saying why you didn't use bivalents and not why you did use monovalents.
 
I didnt post the question bc it would be taken out of context (cant see the passage with it). But if people find it beneficial, here it is:

The monovalent antibodies used in Experiment 2 are fragments of antibodies that have only one antigen-antibody binding site. The MOST likely reason for using such antibodies is that:
 
I didnt post the question bc it would be taken out of context (cant see the passage with it). But if people find it beneficial, here it is:

The monovalent antibodies used in Experiment 2 are fragments of antibodies that have only one antigen-antibody binding site. The MOST likely reason for using such antibodies is that:

Yes, and answers C and D are both true statements. Answer C is "Monovalent antibodies do this" and answer D is "Bivalent antibodies do that."

Answer C directly answers the question, answer D answers the question "The MOST likely reason for not using bivalent antibodies is that:"
 
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