You may have taken those classes but it is sad to see that you did not learn what evidence is.<quoted text>
I've taken Bio, Chem, Physics, Physiology, etc....so your explanation is rather mediocre.
I'm asking how does DNA of one species change into another. Since evo scientists claim that we evolved from other species. Wouldn't genetics have an explanation to this? Similarities in DNA or chromosome count doesn't account for evidence for TOE. I'd rather believe in the science of spiderman. LOL.
Similarities in DNA is evidence for evolution. It is an undeniable fact by anyone who understands evidence.
And one more point on giraffes. If the environment changed again so that grass was constantly available the extra energy required to grow a long neck would be detrimental and short giraffes would evolve again.