Q1. Bacteria are grown in 15N (heavy) medium and next transferred to 14N (light) medium and allowed to replicate for 1 generation. The DNA is consequently isolated and centrifuged in a CsCl2 gradient to yield what type of gradient band(s)?

Q2. The Mad Scientist’s Death-Ray

Imagine that a mad scientist invents a death-ray that destroys a person’s ciliary, sphenopalatine, and submandibular ganglia (and nothing else). Examine all the symptoms the victim would show. Will victim die, or would the scientist have to go back to the laboratory to invent a more effective death-ray?