1. What are some things you can do with a pure sample of DNA?

Check if someone did a crime!

Explanation:

DNA can be used for molecular analyses including PCR, electrophoresis, sequencing, fingerprinting and cloning

Explanation:

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?