The beginning of anaphase is indicated by which of the following?

A. Spindle microtubules begin to polymerize.
B. Kinetochores attach to the metaphase plate.
C. Chromatids lose their kinetochores.
D. Cohesin is cleaved enzymatically.
E. Cohesin attaches the sister chromatids to each other.

Cohesin is a protein that holds sisters chromatids together. Anaphase begins with the cleavage of that protein, enabling centromeres to split, and the movement of new daughter chromosomes toward the poles.

During the anaphase, microtubules that are not attached to chromosomes elongate and push apart. This elongation makes the cell longer and separates the poles.

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The beginning of anaphase is indicated by which of the following? A. Spindle microtubules begin to polymerize. B. Kinetochores attach to the metaphase plate. C. Chromatids lose their kinetochores. D. Cohesin is cleaved enzymatically. E. Cohesin attaches the sister chromatids to each other.

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The beginning of anaphase is indicated by which of the following?

A. Spindle microtubules begin to polymerize.
B. Kinetochores attach to the metaphase plate.
C. Chromatids lose their kinetochores.
D. Cohesin is cleaved enzymatically.
E. Cohesin attaches the sister chromatids to each other.