What two types of movement are responsible for separating sister chromatids duri

Question

What two types of movement are responsible for separating sister chromatids during anaphase?

A. Kinetochore microtubules that depolymerize at the kinetochore proteins and polar microtubules that overlap and lengthen the cell. B. Kinetochore microtubules that depolymerize at the spindle poles and polar microtubules that overlap and lengthen the cell. C. Aster microtubules that depolymerize at the spindle poles and kinetochore microtubules that overlap and lengthen the cell. D. Polar microtubules that depolymerize at the chromosome attachment and aster microtubules that overlap and lengthen the cell.

Explanation / Answer

Ans:

A. Kinetochore microtubules that depolymerize at the kinetochore proteins and polar microtubules that overlap and lengthen the cell.

During anaphase, kinetochore microtubules depolymerise at + end (kinetochore proteins) .

Polar microtubules overlap and increases length of the cell.

Ans:

A. Kinetochore microtubules that depolymerize at the kinetochore proteins and polar microtubules that overlap and lengthen the cell.

During anaphase, kinetochore microtubules depolymerise at + end (kinetochore proteins) .

Polar microtubules overlap and increases length of the cell.

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