Figure 3.

Lamins bind and surround each chromosome during the early embryonic cell cycles. Early embryos were prepared as described in Materials and Methods and submitted to indirect immunofluorescence visualization with a 687A7 monoclonal anti-lamin antibody (13). DNA was stained with propidium iodide. Green, lamins; red, DNA. A–F are successive stages of the organization of the nucleus during each cell cycle from anaphase (A) to prophase (F).