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Ch. 10

Sec 2: DNA Structure

TermDefinition
Nucleotide 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 a base
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 Pairs of bases that follow base paring rules
Base Sequence The order of nitrogenous bases on a chain of DNA
Created by: McLeanE18
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