Children everywhere wonder about the world around them. The questions they ask are the beginning of scientific inquiry. Given below are some questions that children in India have asked Professor Yash Pal and Dr Rahul Pal as reported in their book, Discovered Questions (NCERT, 2006). (i) What is DNA fingerprinting? What are its uses? (ii) How do honeybees identify their own honeycombs? (iii) Why does rain fall in drops? Can you answer these questions?
Model Answer & Options
Source: TextbookThese are excellent questions that reflect a scientific mind. DNA fingerprinting is a technique used to identify individuals using patterns in their DNA, especially useful in forensic science and paternity tests. Honeybees identify their honeycombs using a combination of scent markers and their highly developed spatial memory. They remember the exact location using visual cues and pheromones. Rain falls in drops because of surface tension, which causes water to clump into spherical shapes as it falls from clouds. These natural phenomena reflect the intricate laws of physics and biology at work. By exploring such questions, children can begin their journey into scientific exploration, just as Richard Ebright did.
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