The CPR Basics has the basic steps for CPR. Use it for quick information on hand placement for chest compression, compression rates, compression depth, and ratio of compressions to rescue breaths. The American Heart Association recommends taking a class on how to give CPR and then use the steps below as a reference.
Prophase (from the Greek ÏÏÏ, before and ÏÎ¬ÏÎ¹Ï, stage), is a stage of mitosis in which the chromatin condenses into double rod-shaped structures called chromosomes in which the chromatin becomes visible. This process, called chromatin condensation, is involved with the condensin complex.
The first phase of mitosis is prophase. During this phase the nucleus disappears. Once the nucleus has disappeared, the centrioles move from the center of the cell to different ends of it. Fibers cross and form the mitotic spindle. Once the fibers have extended and centrioles have separated, prometaphase begins.