Place the following components of CRISPR-Cas systems in the order in which they function during generation of CRISPR-Cas immunity:

1) The effector complex binds to the foreign DNA
2) The CISPR array is transcribed into a long CRISPR precursor RNA
3) CRISPR RNA combines with a Cas protein to for an effector complex
4) CRISPR precursor RNA is cleaved and processed into CRISPR RNAs.
5) The cas protein in the effector complex cleaves the foreign DNA
6) Spacers are incorporated into the CRISPR array

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