GENE 540 Midterm: Interphase is NOT Part of Mitosis
Document Summary
Golgi complex break down into vesicles: this is necessary so that the microtubules, nucleated by the centrosomes, can interact with the chromosomes to form the mitotic spindle. The nuclear envelope consists of two lipid bilayer membranes. Nuclear envelope is a lipid bilayer (inner and outer) The outer nuclear lipid bilayer is continuous with endoplasmic reticulum. During prophase, the nuclear envelope disassembles or breaks down the inner membrane retracts into the endoplasmic reticulum, so that it is no longer a nuclear envelope. During prophase the nuclear envelope disassembles or breaks down . The inner membrane retracts into the endoplasmic reticulum. Contains microtubules (made up of ab- tubulin dimer) Each type of filament has its own role. The inner lipid bilayer of the nuclear envelope is supported by the nuclear lamina. A meshwork of intermediate filaments built from three proteins, lamins a, b, c.
