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Anatomy Midterm

Ch 4,5,6,&7

DNA structure The "spiral staircase" structure. The two sugar-phosphate backbones twine around each other while complementary bases (colored bars) face each other on the inside of the double helix.
double helix The steplike connections between the backbones are pairs of nitrogenous bases. / Across from a purine on one backbone, there is a pyrimidine on the other.
comparison of DNA to RNA DNA is a double helix, RNA consists of only one nucleotide chain / sugar in RNA is ribose instead of deoxyribose / it has no thymine; a base called uracil (U) takes its place.
semiconservative duplication of DNA so that each daughter cell is given a complete copy of its genes
Created by: jennahamilton