DNA to RNA: ACCUUCAGCUCCA
Its B since the lower leaves need sunlight to make food (photosynthesis)
I believe the answer is sunlight
Isopropyl alcohol causes the DNA to precipitate. When DNA is emerged in the solution, when it comes out it will ideally clump together, making it visible. Isopropyl alcohol is a key ingredient when isolating DNA. Ethanol also can be used to achieve this.