Why can it be said that transcription of the bacteriophage

Why can it be said that transcription of the bacteriophage T7 genome requires two enzymes?

http://nursingmodules.com/wp-content/uploads/2020/02/logo-300x60.png 0 0 prince http://nursingmodules.com/wp-content/uploads/2020/02/logo-300x60.png prince2021-01-31 07:16:362021-01-31 07:16:36Why can it be said that transcription of the bacteriophage