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what is a gene bank?

Gene banks are a type of bio repository which preserve genetic material. In plants, this could be by freezing cuts from the plant, or stocking the seeds. In animals, this is the freezing of sperm and eggs in zoological freezers until further need, in an effort to conserve agricultural biodiversity, Gene banks are used to store and conserve the plant genetic resources of major crop plants and their crop wild relatives. There are many gene banks all over the world.