Malcolm Steinberg tested this hypothesis by putting two cell types in a Petri dish and watching how they sorted: a. how did the sorting pattern that supported cell adhesion being the force of cell sorting differ from that of "directed movement" (i.e., cells independently were directed to move inward --in that direction)? (can draw pattern or describe in words) b. He could have tested it another way--by inhibiting or knocking down cadherins (cell adhesion molecules) with a chemical or by using CRISPR/CAS9--if he did, what do you predict cells would do when placed in a Petri dish? (can draw this outcome or describe in words)

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Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: