my science center trip today.....

today, i learnt about DNA (deoxyribonucleic acid)i hope i did not spell it wrongly. i liked the DNA model too. i was also very sad because the video(one wrong letter)is very sad. i almost cried.i cannot believe that just one bad letter out of billions and billions of DNA(tay-sachs disease) can cause a human to die.i really wish the scientist can figure out the pattern of the DNA faster. i really think that the excursion today gave me lots of knowledge that i didn't know. by,cheryl