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Only totipotent and pluripotent stem cells. Totipotent can become any cell type, because they come from a 3-day-embryo. Pluripotent are already differentiated cells, coming from the inner cell mass of a blastocyst kai can become any tissue cell type or any organ. Pluripotent can be extracted from the inner cell mass of the blastocyst the 5th day after the fertilization. This has ethical drawbacks. That's why the scientists are trying to extract stem cells from only one cell from the inner cell mass of the blastocyst.
No. Germ cells are needed to produce sperm. Sertoli cells only aid in the process.
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different cells use different parts of the genetic information they contain.
Only totipotent and pluripotent stem cells. Totipotent can become any cell type, because they come from a 3-day-embryo. Pluripotent are already differentiated cells, coming from the inner cell mass of a blastocyst kai can become any tissue cell type or any organ. Pluripotent can be extracted from the inner cell mass of the blastocyst the 5th day after the fertilization. This has ethical drawbacks. That's why the scientists are trying to extract stem cells from only one cell from the inner cell mass of the blastocyst.
Only adult stem cells produce progenitor cells because they multiply though the process of cell division and therefore produce progenitor cells.
No. Germ cells are needed to produce sperm. Sertoli cells only aid in the process.
yes
they can only produce cells that are like themselves