How do chromosomes condense during mitosis?
Chromatin condensation is driven by condensins and interactions between histones. … Although already significantly compacted during interphase, upon entry into mitosis chromatin further condenses and individualizes to discrete chromosomes that are captured and moved independently by the mitotic spindle apparatus.
What moves the chromatids during mitosis?
Spindle fibers are specialized microtubule structures that guide the movement of chromosomes and chromatids during mitosis.
Why does chromosomes move and align themselves at the center of the cell during metaphase?
Movement is mediated by the kinetochore microtubles, which push and pull on the chromosomes to align them into what is called the metaphase plate. Chromosomes on the metaphase plate are held there tightly by pushing and pulling forces from the microtubules. Microtubule structure allows them to be dynamic molecules.
Why do chromosomes condense just before mitosis?
Condensation of chromatin into sturdy chromosomes is also necessary to establish proper physical properties. Chromosomes must be stiff, resilient, and elastic enough to withstand forces coming from pulling microtubules and cytoplasmic drags during mitosis to prevent damage and breaks caused by external tensions.
Why do chromosomes condense during mitosis quizlet?
Why do chromosomes condense during mitosis? Chromosomes condense in order to make chromosomes which consists of sister chromatids.
Why do chromosomes condense during prophase?
Chromosomes condense during prophase because it makes them easier to separate into the two daughter cells.