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Keywords: Gene, chromosomes, undifferentiated plasmid, base pairs, B2 Topic 1 The Components of Life This topic looks at: • DNA in detail and how cells divide • Genetic Issues • Enzymes and conditions affecting them Organisms have adapted to live in extreme environments, what are two examples of these? 1. 2. Draw, label and describe the function of the following cells: Animal Cell Plant Cell What uses are there for genetic engineering? Bacteria Cell Use diagrams to show the stages in genetic engineering STEM CELLS What is the human genome project? What are stem cells, how can they be used and where do we find them? What are the 4 bases in DNA and how do they pair up? Keywords: hydrogen bonds, Keywords: enculeated, daughter cell, parent cell, biological B2 Topic 1 The Components of Life This topic looks at: • DNA in detail and how cells divide • Genetic Issues • Enzymes and conditions affecting them CELL DIVISION There are 2 types of cell division. Draw the stages in each one and state where they occur in the body MITOSIS CLONING Use diagrams with explanations to show how cloning occurs. MEIOSIS What are enzymes? What is a catalyst? Where are enzymes found? What 3 things affect how an enzyme works? Keywords: genetically identical, body cells, haploid, diploid Sketch a graph to show how the 3 factors mentioned earlier affect how an enzyme works. 1. 2. 3. Keywords: Gene, chromosomes, undifferentiated plasmid, base pairs, B2 Topic 1 The Components of Life This topic looks at: • DNA in detail and how cells divide • Genetic Issues • Enzymes and conditions affecting them Protein Synthesis Describe what transcription and translation are use diagrams to aid you. Use the following key words Which base pairs match up in DNA? Protein Synthesis From the single strand of DNA, follow the steps to work out the sequence of amino acids… DON’T FORGET THAT mRNA HAS A ‘U’ INSTEAD OF ‘T’. 1. DNA= AATGGCTTGACTCTA mRNA = ____________________________ tRNA triplets: ______ ______ ______ ______ ______ Order of amino acids: _____ ______ ______ ______ ______ 2. DNA= TGGCTAGTAAAGCTT mRNA = ____________________________ tRNA triplets: ______ ______ ______ ______ ______ Order of amino acids: _____ ______ ______ ______ ______ How many base pairs make up an amino acid? How many amino acids are there? Keywords: hydrogen bonds,