"Testes are designed to generate a lot of sperm and they have these germ cells," he said.
"So germ cells are designed also in a way to give us two different tissues as well so we were able to get a germ cell from testes and instruct them to become other tissues."
In women also this stem cell exists but the number is very, very low and we hope that eventually we can be able to get these stem cells from their ovaries as well," he said.
There are plenty of stem cells from women who are pregnant. They are available in placenta, cord blood and the amniotic fluid.
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