Question 3 (1 point) The paired bases of a DNA molecule are best described as covalently linked across the width of the double helix identical mirror images complementary single-stranded
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This means that adenine pairs with thymine, and guanine pairs with cytosine in a specific and complementary manner. Show more…
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Match these terms relating to base pairing: - Hydrogen bonds link A-T and G-C, these are the "rungs" of the DNA ladder. - Shape of RNA. - Number of bonds between Adenine & Thymine or between Adenine and Uracil. - Complementary base pairing. - Weak, yet many, hold DNA strands together, or RNA that folds back on itself. - Phosphodiester linkage. - Shape of DNA. - Double helix. - Single strand, but can fold back on itself to give 3D shape. - Hydrogen bonds. - Covalent bonds between sugar-phosphate groups, sides of DNA ladder.
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Put the steps of DNA replication in order: 1. Double-stranded DNA "unzips" to reveal a template DNA strand. 2. The origin of replication sequence attracts DNA polymerase. 3. Complementary bases are added according to the base pairing rules.
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Q1: What holds one strand against the other in the double helix? Q2: What are the four pairs of DNA bases that form the double helix?
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