Scientists have been able to cause some bacteria to produce insulin. In which area of science would these scientist most likely work?

Scientists have been able to cause some bacteria to produce insulin. In which area of science would these scientist most likely work?

Scientists have been able to allow bacteria produce insulin as a result of molecular work which helps to alter the DNA of bacteria to produce such, scientists in the field of biochemistry and microbiology does this.

Explanation:

answer; i believe that the correct answer is (lung);

thinking it would be physical characteristics