Two related plants may produce similar substances that could be used for medicines. A related plant may provide a cheaper source of a substance. -If a plant becomes extinct, a related plant may provide an alternative source of a substance.
DNA fragments are composed of molecules called nucleotides. Each nucleotide is made up of a sugar group, a phosphate group, and a nitrogen base.
DNA fragments cut by restriction enzymes are called restriction fragments. They can be separated by gel electrophoresis.
Learn more about DNA fragments in several plant species here: https://brainly.com/question/14433038
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