10 Multiple Answer 1 point Why do Rag1 and Rag2 catalyze somatic recombination in our B-cells and T-cells only? RSS sequences in our Rag1 and Rag2 genes are only present in our B-cells and T-cells RSS sequences in our Rag1 and Rag2 genes are not present in our germ-line cells Rag1 and Rag2 are only expressed in our B-cells and T-cells RSS sequences in B-cell and T-cell receptor genes are only present in our B-cells and T-cells The genes coding for Rag1 and Rag2 are only present in our B-cells and T-cells