The structure of virus particles to include genetic material, capsid and attachment protein. The principles and limitations of optical microscopes, transmission electron microscopes and scanning electron microscopes. Measuring the size of an object viewed with an optical microscope. Principles of cell fractionation and ultracentrifugation as used to separate cell components. Students should be able to appreciate that there was aĬonsiderable period of time during which the scientific communityĭistinguished between artefacts and cell organelles. Iodide solution to identify starch grains in plant cells. Within multicellular organisms, not all cells retain the ability to divide.Įukaryotic cells that do retain the ability to divide show a cell cycle.DNA replication occurs during the interphase of the cell cycle.
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