AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens during Metaphase 2 in MEIOSIS?
A
Second round of lining up at the equator
B
Cells separating into two diploid cells
C
First round of lining up at the equator
D
There is nothing called Metaphase 2
Explanation: 

Detailed explanation-1: -During metaphase II, the chromosomes align along the cell’s equatorial plate. During metaphase II, the chromosomes align along the cell’s equatorial plate.

Detailed explanation-2: -The paired chromosomes line up along the equator (middle) of the cell. In metaphase II of meiosis II, it is sister chromatids that line up along the equator of the cell. In anaphase I of meiosis I, spindle fibers shorten, and the chromosomes of each homologous pair start to separate from each other.

Detailed explanation-3: -During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells. Then in anaphase II, the chromosomes separate at the centromeres. The spindle fibers pull the separated chromosomes toward each pole of the cell.

Detailed explanation-4: -Long protein filaments called kinetochore microtubules extended from poles on either end of the cell and attached to the kinetochores. During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane.

Detailed explanation-5: -During metaphase, chromosomes are organized on an equatorial plate. Metaphase is the stage of eukaryotic cell division when the chromosomes align in the middle of the cell.

There is 1 question to complete.