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Unformatted text preview: continues until all the organs have been constructed. During this process, a small number of progenitor germ cells are sequestered until rudimentary gonads (testes or ovaries) have formed when the germ cells migrate into them. At this stage germ cells are neither sperm nor egg cells, they are precursers, spermatogonia or oogonia. In their own way they are every bit as differentiated as any other (somatic) cell of the body. There is no way that a spermatogonium will ever be able to differentiate into a liver cell for instance. However, the germ cells contain the potential to be transmitted to the next generation and contribute one half of the DNA of the next individual....
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- Fall '10