Your question: Which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell quizlet?

Special strands of microtubules which grow out of the centrioles, connect to chromosomes at the centromeres, and pull them apart during (anaphase) of mitosis.

Which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell?

During metaphase, the chromosomes align at the center of the cell. During anaphase, the sister chromatids are separated and pulled to opposite ends of the cell.

In what stage do the spindle fibers contract to begin to pull the chromosomes apart?

After the pairs of chromosomes are aligned, anaphase I begins. During this stage, the microtubules, or spindle fibers, pull the homologous chromosomes apart and move them to opposite ends of the cell. Telophase I is next.

Which step of mitosis involves the spindle fibers pulling the chromosomes to opposite ends of the cell Brainly?

Mitosis: In Summary

In prometaphase, kinetochores appear at the centromeres and mitotic spindle microtubules attach to kinetochores. In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber. In anaphase, sister chromatids (now called chromosomes) are pulled toward opposite poles.

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What is metaphase?

Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. … During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell. During this stage in human cells, the chromosomes then become visible under the microscope.

How do spindle fibers pull chromosomes apart?

The movement of chromosomes is facilitated by a structure called the mitotic spindle, which consists of microtubules and associated proteins. Spindles extend from centrioles on each of the two sides (or poles) of the cell, attach to the chromosomes and align them, and pull the sister chromatids apart.

Do spindle fibers form in mitosis?

Spindle fibers are filaments that form the mitotic spindle in cell division, i.e. mitosis and meiosis. … The spindle fibers form during prophase. During metaphase of cell division, the spindle fibers radiate from the centrioles at the opposite poles.

What are the four stages of mitosis?

These phases are prophase, prometaphase, metaphase, anaphase, and telophase.

What is interphase G2?

G2 is the shortest phase of interphase. It is when organelles and proteins necessary for cell division are produced. The cell requires a bunch of proteins and other stuff to separate the chromosomes and divide the cell in half. All of these materials are produced during G2.

What attaches the chromosome to the spindle fiber during metaphase?

During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids (see Figure below). The sister chromatids line up at the equator, or center, of the cell.

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Is prophase a G1?

G1 phase: The period prior to the synthesis of DNA. … G2 phase: The period after DNA synthesis has occurred but prior to the start of prophase. The cell synthesizes proteins and continues to increase in size. The G2 phase is the second gap phase.

What is prophase in mitosis?

Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.

What is the end product of mitosis?

Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.

When chromosomes are split is called?

Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell. …