15. The lactose repressor is encoded by__________ (A)Lac-l (B)Lac-A (C) Lac-Y (D)Lac-Z

8. Which of the following about the differences between the prokaryotic and eukaryotic genes are true? (A)Prokaryotic genes are large, polycistronic and contain enhancers (B)Eukaryotic genes are large, polycistronic and contain enhancers (C) Prokaryotic genes are large, monocistronic and contain introns (D)Eukaryotic genes are large, monocistronic and contain introns