B3-DNA!!! 0.0 / 5 ? ScienceGenetic variationGCSEEdexcel Created by: Impossible1Created on: 10-10-21 22:54 Chromosome: It is a large molecule made into a small package by tightly coiling DNA around a protein. 1 of 6 DNA Structure: - Two strands. - Double Helix. - Complementary base pairs. - Sugar Phosphate backbone. 2 of 6 DNA Bases: 1) Adenine. 2) Thymine. 3) Cytosine. 4) Guanine. A, T, C, G. 3 of 6 Complementary Base Pairs: A always pairs with T. C always pairs with G. 4 of 6 Hydrogen Bonds: It is a weak force that holds the two strands of DNA together. 5 of 6 DNA Analysis: It uses small differences in DNA to determine family relationships or to link people to crimes. 6 of 6
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