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Biology Chapter 10.2
Term | Definition |
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Nucleotide | In a nucleic-acid chain, a subunit that consist of sugar, a phosphate, and a nitrogenous base. |
Deoxyribose | A five-carbon sugar that is a component of DNA nucleotides. |
Nitrogenous Base | An organic base that contains nitrogen, such as a purine or pyrimidine; a subunit of a nucleotide in DNA and RNA. |
Purine | A nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine. |
Pyrimidine | A nitrogenous base that has a single-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; thymine, cytosine, or uracil. |
Base-pairing Rules | The rules stating that cytosine pairs with guanine and adenine pairs with thymine in DNA, and that adenine pairs with uracil in RNA. |
Complementary Base Pair | The nucleotide bases in one strand of DNA or RNA that are paired with those of another strand; adenine pairs with thymine or uracil, and guanine pairs with cytosine. |
Base Sequence | The order of nitrogenous bases on a chain of DNA. |