what would be the result of a mutation that deactivates the regulatory gene that makes the repressor protein of a repressible operon in an escherichia coli cell?

How are carbon dioxide emissions affecting the earths natural cycle of temperature change? plz apex

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

What advantages does a pedigree have over a written passage?