Which statement is FALSE?1. Flexible domain of T7 RNAP is part of a single protein and it binds to a major grove recognizing T7 phage promoter2. T7 RNAP activity is stringently regulated3. T7 RNAP synthesizes RNA at a rate of 200 nt/sec4. T7 RNAP is a minimal enzyme, which recognizes only one promoter