Sentences with phrase «egg cell precursors»

«Insights into the development of sperm and egg cell precursors in the embryo.»

Not exact matches

The aged egg, which may have had damaged mitochondria that wouldn't work as well, then has fresh mitochondria from the egg precursor cells to generate energy.

Usually imprinting marks are erased in the germ cell precursor cells and then rewritten in the eggs or sperm.

But researchers reporting online April 14 in Nature Cell Biology claim they have found precursor stem cells in newborn and adult mice that could be prodded into producing new eggs.

These egg - generating cells are germline stem cells — precursors that become either eggs or sperm depending on whether they end up in ovaries or testes.

With careful observation and experiments with mouse oocytes, the precursors of eggs, they've detected molecular signals that create an asymmetry in the machinery that drives meiosis, the cell - division process that gives rise to gametes.

Even though the reproductive age for humans is around 15 — 45 years old, the precursor cells that go on to produce human eggs or sperm are formed much earlier, when the fertilized egg grows into a tiny ball of cells in the mother's womb.

That ovarian tissue bears clusters of cells known as primordial follicles, which surround immature precursors to egg cells.

Because the cells that give rise to sperm divide frequently — about 23 times a year — they are much more likely to accumulate genetic copying errors than the female precursor cells, oocytes, which divide only twice before becoming eggs.

Scientists have already reported progress in growing precursor cells for eggs and sperm from both iPS and embryonic stem cell lines.

When this mechanism was abolished in female and male germ cells, precursors of eggs and sperm, it had an impact on the flies» fertility.

Scientists have shown how the precursors of egg and sperm cells — the cells that are key to the preservation of a species — arise in the early embryo by studying pig embryos alongside human stem cells.

Egg precursor cells (EggPC cells) are immature egg cells that are found in the protective outer lining of your ovaEgg precursor cells (EggPC cells) are immature egg cells that are found in the protective outer lining of your ovaegg cells that are found in the protective outer lining of your ovary.

By contrast, in a female, egg precursor cells divide only 24 times, all but one of these divisions occurring before she is born.