What stages do sister chromatids separate?

Metaphase leads to anaphase, during which each chromosome’s sister chromatids separate and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister chromatids together during prophase — causes this separation to occur.

In which stage are the sister chromatids separated group of answer choices?

In anaphase, sister chromatids (now called chromosomes) are pulled toward opposite poles. In telophase, chromosomes arrive at opposite poles, and nuclear envelope material surrounds each set of chromosomes. Finally, in cytokenesis, the two daughter cells are separated.

Why do sister chromatids separate in anaphase 2?

Anaphase II is the stage when sister chromatids of every chromosome separate and begin to move towards the opposite ends of the cell. The separation and the movement is due to the shortening of the kinetochore microtubules.

What are two sister chromatids?

Definition: Sister chromatids are two identical copies of a single replicated chromosome that are connected by a centromere. Chromosome replication takes place during interphase of the cell cycle.

What causes the sister chromatids to separate?

Metaphase leads to anaphase, during which each chromosome’s sister chromatids separate and move to opposite poles of the cell. Enzymatic breakdown of cohesin — which linked the sister chromatids together during prophase — causes this separation to occur.

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Why do sister chromatids remain together in anaphase 1 but separate in anaphase 2 of meiosis?

Briefly explain why sister chromatids remain together in anaphase I but separate in anaphase II of meiosis. … At the end of metaphase II, the protection of the cohesin molecules at the centromeres is lost, and the separase proteins can now cleave the cohesin complex, which allows the sister chromatids to separate.

Why do sister chromatids stay together in anaphase 1?

During meiosis I, the chromatin condenses as in mitosis and the sister chromatids are held together through a process called cohesion. … Unlike in mitosis, the sister chromatids remain attached at their centromeres by cohesion, and only the homologous chromosomes segregate during anaphase I.

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