Question: Which molecule is responsible for moving chromosomes?

The spindle is a structure made of microtubules, strong fibers that are part of the cell’s “skeleton.” Its job is to organize the chromosomes and move them around during mitosis. The spindle grows between the centrosomes as they move apart.

What is responsible for moving the chromosomes?

Chromosome movement is powered by microtubule-based molecular motors, which use the energy of ATP hydrolysis to generate force, and by microtubule depolymerization, which liberates energy stored in the microtubule lattice by GTP hydrolysis during assembly [1].

What is responsible for moving chromosomes during mitosis 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.

Which of the following is responsible for the movement of the chromosomes during mitosis?

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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Which organelles are responsible for arranging and moving chromosomes in cell division?

Besides the intracellular movement of organelles, the cytoskeleton is responsible for chromosome movement during cell division and for cytokinesis. This intricate network of protein filaments, which runs throughout cytoplasm, makes up a dynamic, continuously reorganizing framework, not a static scaffolding.

What organelle is responsible for the beginning of the lining up of chromosomes?

The mitotic spindle begins to form. The spindle is a structure made of microtubules, strong fibers that are part of the cell’s “skeleton.” Its job is to organize the chromosomes and move them around during mitosis. The spindle grows between the centrosomes as they move apart.

What structures 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.

Are chromosomes visible in interphase?

During interphase, individual chromosomes are not visible, and the chromatin appears diffuse and unorganized.

What is it called when chromosomes appear?

prophase. a cell division begins, the chromatin threads coil and shorten so that visible bar like bodies (chromosomes) appear.

What are chromosomes made of?

Chromosomes are made up of a DNA-protein complex called chromatin that is organized into subunits called nucleosomes.

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