Over all in science there has been many great inventions. It was a hard choice, but I decided that the greatest discover was the discovery of DNA. I believe this is the greatest discovery for many great reasons. 
     I believe this is the greatest discover, because it helped us all with all the science and medical things there are today. For example if they wouldn't have discovered the DNA, neither science nor doctors would have been able to discover anything that had to do with your DNA, or traits nor all of that. There are some many great discoveries out there, but I believe this one is the greatest in science because of those reasons I had explained above. Yes, other people had discovered some many great things, like how animals will change, etc. But, I believe that discovering how animals will be in the future isn't as important. 

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