Question

Identify the key events in Anaphase of Mitosis
A) Centromeres split and chromatids separate
B) Chromatids move to opposite poles
C) Chromosomes are moved to spindle equator

• A. All A, B & C
• B. Both A & B
• C. Both A & C
• D. Both B & C

Hint:

Anaphase is easily recognized by the "V, L, J, or I" shapes of separating chromosomes as they are pulled toward the poles by their centromeres.

Answer 1

The Correct Option is B

Step 1: Pin down what anaphase is really about.
Anaphase is the stage where the cell finally pulls apart the genetic material it has doubled, everything before this stage is about arranging chromosomes, not separating them.
Step 2: Match events A and B to that description.
The centromere splitting and chromatids separating (A) is the trigger event of anaphase, and the resulting chromatids being dragged to opposite poles by shortening spindle fibers (B) is the direct consequence, so both genuinely belong to anaphase.
Step 3: Rule out event C.
Chromosomes lining up at the spindle equator is the hallmark of metaphase, that arranging step happens before anaphase begins, not during it.
Final answer: Option 2, only events A and B, centromere splitting with chromatid separation and their movement to the poles, describe anaphase.