![]() ![]() If those two cells each contain one set of chromosomes, then the resulting cell contains two sets of chromosomes. Sexual reproduction requires fertilization, the union of two cells from two individual organisms. Explain the mechanisms within meiosis that generate genetic variation among the products of meiosis.Explain the differences between meiosis and mitosis.Describe cellular events during meiosis.Describe the behavior of chromosomes during meiosis.15.1 | The Process of Meiosisīy the end of this section, you will be able to: The evolutionary success of sexual reproduction may result from the genetic variation that it introduces into a species’ genome. The vast majority of eukaryotic organisms employ some form of meiosis and fertilization to reproduce. Haploid cells that are part of the sexual reproductive cycle are produced by a type of cell division called meiosis. ![]() In most plants and animals, through tens of rounds of mitotic cell division, this diploid cell will develop into an adult organism. Sexual reproduction is the production by parents of two haploid cells and the fusion of two haploid cells to form a single, unique diploid cell. Whereas many unicellular organisms and a few multicellular organisms can produce genetically identical clones of themselves through cell division, many single-celled organisms and most multicellular organisms reproduce sexually. In kind does not generally mean exactly the same. Hippopotamuses give birth to hippopotamus calves, Joshua trees produce seeds from which Joshua tree seedlings emerge, and adult flamingos lay eggs that hatch into flamingo chicks. In kind means that the offspring of any organism closely resemble their parents. ![]() The ability to reproduce in kind is a basic characteristic of all living things. ![]()
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