What would happen if the kinase that adds the inhibitory phosphate to cdk were defective? see section 12.3 (page 264) . view available hint(s) what would happen if the kinase that adds the inhibitory phosphate to cdk were defective? see section 12.3 (page 264) . the onset of m phase would be delayed. cdk concentrations would spike. mpf levels would become abnormally high. m phase would begin prematurely. submit?