This document discusses DNA, cloning, and genetics. It explains that Rosalind Franklin discovered the DNA structure using x-rays which allowed Watson and Crick to develop the double helix model. DNA fingerprints can be used to identify individuals based on their unique DNA. Cloning of Dolly the sheep was the first successful cloning of a mammal and showed that cloning animals may be possible. The benefits and risks of human cloning are also discussed.