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BI Lab 9
Term | Definition |
---|---|
nucleotides | each DNA molecule is composed of these subunits |
nitrogenous base, deoxyribose, and phosphate group | three parts that make up the nucleotide |
nitrogenous base | adenine, thymine, guanine, and cytosine |
deoxyribose | five-carbon sugar |
hydrogen bonds | hold together two nucleotide strands in a spiral double helix |
complementary base pairing | inside the double helix, the bases always pair in a specific order: adenine with thymine and guanine with cytosine |
replication | duplication of the molecule |
antiparallel nature | nature of the double-stranded DNA molecule in which opposite ends of the molecule have phosphate bonds |
filtrate | liquid mixture that flows through something like cheesecloth |
interface | layer between filtrate and ethanol |
precipitating | becoming solid and visible in a solution |