Fill in the blank with the best possible choice: the arac gene key points are underlined. a. will be transcribed by rna polymerase to produce the arac mrna. the arac mrna will be translated by ribosomes to produce the arac protein, which is a bifunctional regulator for the gfp gene. b. will be transcribed by ribosomes to produce the arac protein, which will give bacterium ampicillin resistance. c. will be transcribed by ribosomes to produce the arac protein, which will glow under the uv light. d. will be translated by rna polymerase to produce the arac mrna. the arac mrna will be transcribed by ribosomes to produce the arac protein, which is a bifunctional regulator for the gfp gene.