Which of the following is an example of gentic engineering?]
A. A string of animo acids bonded together to form a protein that controls a trait
B. In the nucleus of a human cell, DNA strands sepreate and are used as a template for a new RNA molecule.
C. A string of three bases within an RNA molecule codes for a specific anmio acid.
D. A bacterial cell produce human insullian because human DNA has been added to the bacterial DNA.