Hey guys I was in a discussion with my friend and I couldn't answers some questions about evolution .. and since I'm not that good in biology, I hope that I get some explained answers. Q1 : How can mutations produce organs ? Q2 : Do genetic mutations produce positive and negative changes ? Q3 : Are there bad designs that could be an evidence for evolution ? ( please name some examples and explanations ) Q4 : Can gene mutations be inherited ? Thanks.