In which stage the nuclear membrane completely disappears during nuclear division?
During prophase, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down.
What stage of the cell cycle does the nuclear membrane disappear?
During metaphase, the nuclear membrane disappears and the chromosomes become aligned half way between the centrioles.
What forms spindle fibers during mitosis?
Spindle fibers are protein structures that form early in mitosis, or cell division. They consist of microtubules that originate from the centrioles, two wheel-shaped bodies located in the centromere area of the cell. The centromere is also known as the microtubule organizing center.
During which stage of the cell cycle does the mitotic spindle begin to form quizlet?
In early M phase, the centrosomes move away from each other toward the poles of the cell, in the process organizing the formation of the mitotic spindle. At the end of the M phase when mitosis is complete, the cell divides (cytokinesis), forming two genetically identical daughter cells.
During which phase of the cell cycle does the mitotic spindle form quizlet?
In prophase, the mitotic spindle apparatus is formed. In prometaphase, the spindle fibers interact with the sister chromatids. In metaphase, the two pair chromosomes attach to the spindle’s two poles. In anaphase, the spindles begin to separate from each other.
In which mitotic phase do the chromosomes condense and does the mitotic spindle begin to form?
Prophase is the first stage of mitosis. In prophase, chromosomes condense and become visible. spindle fibers emerge from the centrosomes.