Here are data from several complementation experiments, involving rapid-lysis mutations in genes rIIA and rIIB. The strain designated L51 is known to have a mutation in rIIB. Phage Mixture ComplementationL91 and L65 NoL65 and L62 NoL33 and L47 YesL40 and L51 NoL47 and L92 NoL51 and L47 YesL51 and L92 YesL33 and L40 NoL91 and L92 YesL91 and L33 NoList which groups of mutations are in the rIIA gene and which groups are in the rIIB gene.

rIIA: L47 and L92  

rIIB: L33, L40, L51, L62, L65, L91  

Since L40 with L51 can't show complementation, L40 has a place with rIIB. Further, L40 with L33 can't show complementation demonstrating that L33 has a place with rIIB. Further, L33 and L47 show complementation and L47 and L92 don't show complementation, henceforth L92 and L47 has a place with rIIA. Along these lines all groups can be allocated.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

youre right there are