Sexual reproduction in bacteria is different from Eukaryotic organism. In Eukaryotic organisms ,the male and female gamete cells are produced whose fusion takes place to form zygote but sexual reproduction in bacteria is different because no gamete cells are produced and thus no fusion of cells to form zygote takes place .In bacteria genetic recombination takes place between two bacterial cells.The bacteria which transfer a part of genetic material is called donor and which receive the genetic material is called receipient. Thus the bacterial cell become diploid cell from haploid cell and since a part of genetic material are only exchanged .So it is called merozygote or partial zygote. The merozygote contain all DNA of its past cell and exogenote or a part of DNA from others. This genetic recombination between two bacteria takes place in three methods namely transformation, conjugation and transduction.
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