AS Level Biology-DNA and mitosis 3.0 / 5 based on 1 rating ? BiologyDNA, genetics and evolutionASAQA Created by: Lucy CarrCreated on: 24-05-13 16:38 What are nucleotides in humans made up of? Deoxyribose sugar, organic base, phosphate group 1 of 7 What are introns? Non-coding DNA 2 of 7 How many hydrogen bonds join the different bases? 2 between A and T, 3 between C and G 3 of 7 What are the specific base pairings? Adenine and Thymine, Cytosine and Guanine 4 of 7 What's the correct order of the stages in mitosis? Prophase, Metaphase, Anaphase, Telophase 5 of 7 What happens to the chromosomes during prophase in mitosis? They condense and become visible. 6 of 7 Why is DNA replication described as semi-conservative? Because the original strand is still part of the new DNA moleule 7 of 7
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