Definitions for "Pronuclei"
the haploid nuclei of the oocyte and the spermatozoa after fertilisation but before the dissolution of their membrane and the first division of the fertilised egg.
pro-NU-kle-eye The genetic packages of gametes. 218
The evidence of fertilization. In a normally fertilizedegg, two spherical structures (pronuclei) can be seen in the middle of theegg 16-22 hours post insemination. One of the spheres contains the femalegenetic material and the other contains the male genetic material before theyfuse to form the genes of the embryo.
Keywords:  pronucleus, see
See Pronucleus