Final answer:
When observing the nucleus in human cheek cells, precautions should be taken to ensure accurate results: clean slides, gentle handling, and appropriate staining techniques.
Step-by-step explanation:
When observing the nucleus in human cheek cells, it is important to follow certain precautions to ensure accurate results. Firstly, ensure that you have a clean microscope slide to avoid any contamination that may affect your observations. Secondly, handle the cheek cells gently and avoid any harsh movements that may damage the cells or disrupt the nucleus. Finally, use the appropriate staining technique, such as using a stain like methylene blue, to enhance the visibility of the nucleus and make it easier to observe.
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