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Crossing over is termed as a process by which genetic materials are exchanged by non-sister chromatids during meiosis. Crossing over results in the new combination of information in genetic for, the cell for a specific trait. It ensures that organisms are identical from one generation to another.
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Autotrophs
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Ex. Plants (Autotrophs) gain energy from the sun and turn it into and produce oxygen (Chemical energy)
Viruses are made up of DNA