Which structure forms the spindle fibers and helps move chromosomes during cell division?

Which structures help to organize the spindle fibers which help to move chromosomes apart during mitosis?

Mitosis Quiz 1

Question Answer
Paired structure that helps organize the spindle Centrioles
Cells exchange materials across the cell membrane
The phase where chromatids separate Anaphase
The phase where chromosomes first become visible Prophase

Which structures form the spindle fibers during cell division and guide the duplicated chromosomes to their daughter cells?

Explanation: Spindle fibers are specialized microtubule structures that guide the movement of chromosomes and chromatids during mitosis. During mitosis, the spindle fibers will bind to a protein complex (known as the kinetochore) at the center of the chromosome.

Which cell structures help to move chromosomes during cell division quizlet?

The mitotic spindle (the macromolecular machine that segregates chromosomes to two daughter cells during mitosis) appears, which facilitates the separation of the sister chromatids. The spindle fibers are attached to centrioles that move toward the poles of the cell, pulling the chromatids apart.

What structures moves the chromosomes during this process?

As mitosis progresses, the microtubules attach to the chromosomes, which have already duplicated their DNA and aligned across the center of the cell. The spindle tubules then shorten and move toward the poles of the cell. As they move, they pull the one copy of each chromosome with them to opposite poles of the cell.

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What structures are responsible for movement of chromosomes during mitosis?

The centromere holding the two identical strands of DNA/chromosome is responsible for the movement of chromosomes during mitosis. During the anaphase, this centromere releases the two strands separating them to two sister chromatids. These chromatids move to opposite ends of the cell.

What does vincristine do to spindle fibers?

Antimicrotubule agents (such as Vincristine), inhibit the microtubule structures within the cell. Microtubules are part of the cell’s apparatus for dividing and replicating itself. Inhibition of these structures ultimately results in cell death.