B2 Biology - Topic One (Genes and Enzymes) 0.0 / 5 ? ScienceBiologyGCSEEdexcel Created by: kimmurdoch8Created on: 05-03-16 15:04 What is a cell nucleus? Contains DNA and controls what the cell does. 1 of 8 What is not a characteristic of a plant cell? Plasmids 2 of 8 What do bacterial cells not include? Nucleus 3 of 8 What are the base pairs in a DNA structure? A-T and C-G 4 of 8 What bond holds together DNA? Hydrogen bonds 5 of 8 What is a gene? A section of DNA 6 of 8 What is the name for a change in an organism's DNA base sequence? Mutation 7 of 8 What is a substance that increases the speed of a reaction? Catalyst 8 of 8
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