Which occurs during anaphase?
A)Centrioles move to opposite poles
B)Chromosomes line up along the equator of the dividing cell
C)Chromatids move to opposite poles
D)The nuclear envelope disappears

Question

Which occurs during anaphase? 
A)Centrioles move to opposite poles
B)Chromosomes line up along the equator of the dividing cell
C)Chromatids move to opposite poles
D)The nuclear envelope disappears

Quizplus · Accepted Answer

During anaphase, the chromatids (sister chromosomes) separate at the centromere and move towards opposite poles of the cell. This is facilitated by the shortening of the microtubules that connect the chromatids and the pulling forces generated by the spindle fibers. The other options are incorrect because: A) Centrioles move to opposite poles during prophase, as they are responsible for forming the spindle fibers. B) Chromosomes line up along the equator of the dividing cell during metaphase. D) The nuclear envelope disappears during prophase, which allows the spindle fibers to interact with the chromosomes.

Which Occurs During Anaphase