http://www.wikihow.com/Defend-Evolution-Against-Creationism lists the following advice:
Quote
If a creationist argues that Mendelian inheritance disproves evolution because nothing extra is added to genes, point out that only applies to sexual reproduction, and bacterial cells still evolve. Also bring up that Mendelian inheritance doesn't take into account mutations. There are several kinds, and insertion mutations actually do add extra code into DNA, which could be considered added information.
This should make it plain to anyone that genetics was indeed the antithesis to Darwinism. That it still is... well, one'd need to see though this smokescreen. Can't count on that in every case, unfortunately.

Dark Matter + Dark Energy = Dark Truth

"We find that such evidence demonstrates that the ID argument is dependent upon setting a scientifically unreasonable burden of proof for the theory of evolution." - Judge Jones Kitzmiller case
http://www.talkreason.org/articles/Falsify.cfm

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