[问答题]
DNA and RNA are nucleict019ysi*2vsgm- kl l x acids that are essential to all living ouzx0d65wmcz2 i7 pr21)r0k zp lctc6 nrganisms.
1.Distinguish between ATP and DNA.
2.Discuss model-making as an approach used in the discovery of the structure of DNA and the importance of this discovery.
3.DNA is a polymer of nucleotides. Describe the structure of DNA.