Write a short essay explaining the evidence that DNA is the genetic material. Be sure to use the results of the key experiments to help you with your answer

DNA can be unwound from the double stranded double helix into single strands, amplified, separated on gels by size, stained with dyes.  It can be mutated by a variety of means.  It can be sequenced. Describe one or more of the ways that scientists are able to manipulate DNA and relate this to the structure of the DNA.

One of the key discoveries Avery's work contributed to the discovery of the genetic material was that enzymes that break down DNA made the tranforming principle inactive. Enzymes that break down proteins or RNA had no effect on the transforming material.   True   False

The technique of gel electrophoresis gives scientists an effective way to see some differences between pieces of DNA. Gel electrophoresis shows differences between pieces of DNA based on: The sequence of nucleotides in the DNA fragment O The characteristic encoded on the fragment of DNA O The length of the DNA fragment