the development of the embryo

the embryo is a group of cells that are capable of dividing on the walls of the sub-room. Cells outside the original base divide rapidly, forming a circle around the original base, gradually spreading to both sides to form a layer or two of cells composed of a packet of beads, not completely surrounded by holes called bead holes.
blastocyst occurs in pearl heart
tissue
, most of the large spores of the plant after three silky division, forming 8 nuclei, 8 nuclei further form 7 cells of the blastocyst, that is, 1 egg cell, 2 help cells, 3 anti-foot cells and a central cell, the central cell has two polar nuclei. Some plant species; the two polar nucleies of the central cell remain separated between the two cores before fertilization, and some plant species, the diodes fuse into one before fertilization, called secondary nucleations.
the differentiation of the primary basis of the flower organ is determined by
evolutionary
genes.