AP BIOLOGY

CELL DIVISION

THE CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which event takes place during anaphase II of meiosis?
A
Nuclear membrane breaks down
B
Sister chromatids separate
C
Spindle fibers break down
D
Cytoplasm divides
Explanation: 

Detailed explanation-1: -During anaphase II, microtubules from each spindle attach to each sister chromatid at the kinetochore. The sister chromatids then separate, and the microtubules pull them to opposite poles of the cell.

Detailed explanation-2: -The two sister chromatids of each chromosome are captured by microtubules from opposite spindle poles. In metaphase II, the chromosomes line up individually along the metaphase plate. In anaphase II, the sister chromatids separate and are pulled towards opposite poles of the cell.

Detailed explanation-3: -Answer and Explanation: The event that occurs in both anaphase of mitosis and anaphase II of meiosis is the separation of sister chromatids.

Detailed explanation-4: -Anaphase II: The chromatids split at the centromere and migrate along the spindle fibers to opposite poles. Telophase II: The cells pinch in the center and divide again. The final outcome is four cells, each with half of the genetic material found in the original. In the case of males, each cell becomes a sperm.

Detailed explanation-5: -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.

There is 1 question to complete.