A mouse egg cell, naturally filled with the protein PADI6 (blue) - a marker and main component of the cytoplasmic lattice. The DNA in the cell nucleus is shown in magenta.
Cytoplasmic lattices in the egg cell supply the early embryo as protein storage sites. A mouse egg cell, naturally filled with the protein PADI6 ( blue ) - a marker and main component of the cytoplasmic lattice. The DNA in the cell nucleus is shown in magenta. MPI f. Multidisciplinary Sciences/ Ida Marie Astad Jentoft When mammals have offspring, they invest a lot. Unlike fish or frogs, the embryo cannot develop on its own. It has to implant in the uterus, where it is supplied with everything it needs to survive. Until this happens, the egg cell nourishes the early embryo.
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