What occurs during mitotic prometaphase?

What is the prometaphase stage of mitosis?

These phases are prophase, prometaphase, metaphase, anaphase, and telophase. Cytokinesis is the final physical cell division that follows telophase, and is therefore sometimes considered a sixth phase of mitosis.

What happens during prometaphase of mitosis quizlet?

During prometaphase, what starts moving towards the center of the cell with the help of the forces linked to spindle microtubules? division of the cytoplasm; allows the two daughter cells to completely separate after the end of mitosis.

Which of the following occurs during prometaphase?

Prometaphase is the phase of mitosis following prophase and preceding metaphase, in eukaryotic somatic cells. In prometaphase, the nuclear membrane breaks apart into numerous “membrane vesicles”, and the chromosomes inside form protein structures called kinetochores.

What are the activities that occur during prometaphase?

Disassembly of the nuclear envelope and lamina occurs at prometaphase, a period of the mitotic cell cycle that precedes chromosome segregation. The nuclear envelope fragments into membrane vesicles and the lamin filaments are disassembled into lamin dimers.

What happens during prometaphase?

During prometaphase, the physical barrier that encloses the nucleus, called the nuclear envelope, breaks down. The breakdown of the nuclear envelope frees the sister chromatids from the nucleus, which is necessary for separating the nuclear material into two cells.

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What happens prometaphase?

What Happens during Prometaphase? … During prometaphase, phosphorylation of nuclear lamins by M-CDK causes the nuclear membrane to break down into numerous small vesicles. As a result, the spindle microtubules now have direct access to the genetic material of the cell.

What is Prometaphase quizlet?

Prometaphase. The second stage of mitosis, in which the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the chromosomes.

What happens during prophase quizlet?

What happens during prophase? A cells genetic DNA condenses, spindle fibers begin to form and the nuclear envelope dissolves. … The duplicated chromosomes line up and spindle fibers connect to the centromeres. You just studied 9 terms!

Which of the following represents the overall sequence of events during mitosis?

The correct answer is (a) prophase → metaphase → anaphase → telophase.

What happens to the nucleolus in prometaphase?

The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle. The nuclear membrane dissolves, marking the beginning of prometaphase.

What happens to the cytoplasm in prometaphase?

During prometaphase, the nuclear envelope that encloses the nucleus breaks down, and the nucleus is no longer separated from the cytoplasm. … Along with telophase, the cell undergoes a separate process called cytokinesis that divides the cytoplasm of the parental cell into two daughter cells.