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Biology: Chapter 102
Chapter 10.2 Vocabulary
Term | Definition |
---|---|
Nucleotide | repeating subunits; consists of three parts: a five-carbon sugar, a phosphate group, and a nitrogenous base |
Deoxyribose | the five-carbon sugar in a DNA nucleotide |
Nitrogenous Base | contains nitrogen atoms and carbon atoms and is base |
Purine | nitrogenous bases that have a double ring of carbon and nitrogen atoms, such as adenine and guanine |
Pyrimidine | nitrogenous bases that have a single ring of carbon and nitrogen atoms, such as cytosine and thymine |
Base-Pairing Rules | in DNA, cytosine on one strand pairs with guanine on the opposite strand, and adenine pairs with thymine |
Complementary Base Pair | pairs of bases |
Base Sequence | the order of nitrogenous bases on a chain of DNA |