Answer:A prophage is a bacteriophage (often shortened to "phage") genome inserted and integrated into the circular bacterial DNA chromosome or existing as an extrachromosomal plasmid.
Answer: A prophage is the genetic material of a bacteriophage, incorporated into the genome of a bacterium and it is able to produce phages if it is specifically activated. I hope this helps!
The Incubator made it possible to maintain a controlled environment for cell cultures because most modern incubators act as a petri dish but in a more controlled state.