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strycture of DNA
EOC study guide
| Question | Answer |
|---|---|
| what is DNA | a very long molecule made of repeating subunits called nucleotides |
| how many nitogen bases are there | four |
| what are the four nitrogen bases called | adenine, guanine, thymine, cytosine |
| what is RNA | aingle stranded, contain U's instead of T's, can leave the nucleus |
| who are Waston and Crick | developed the double helix model of DNA |
| what is double helix | a long zipper that is twisted |
| what is nucleotides | have three parts --- sugar, phosphate group. and nitrogen base |
| what is mutation | any change in the DNA code |
| what is replication | the copying of the DNa for the process of cell divison |