Structure of DNA

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AS Biology2 (DNA and Meiosis) Flashcards on Structure of DNA, created by sammi_taylor01 on 29/05/2013.
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Flashcards by sammi_taylor01, updated more than 1 year ago
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Question Answer
What is DNA made up of? Two strands of nucleotides, each are extremely long and joined together by hydrogen bonds between complementary bases
Which are the single-ring bases and which are the double-ring bases? Single-ring = T and C Double-ring = A and G
What are the complementary base pairs and how many hydrogen bonds are they paired by? A and T - two hydrogen bonds C andG - three hydrogen bonds
What do all four organic bases contain? nitrogen
What is the DNA made up of? Two strands therefore it is called a double helix
For each turn of the helix how many base pairs are there? 10 for each complete turn
What is in a nucleotide -phosphate group -deoxyribose (pentose) sugar -organic bases (A,T,G and C)
How are the deoxyribose sugar, organic base and phosphate group joined? Using a condensation reaction.
What is the name given to a single nucleotide? mononucleotide
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