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Identify the stages described. You can have as many answers as you can
think of in one number.
1. The nucleolus disappears.
2. The formation of the spindle fibers is completed.
3. The nuclear membrane disappears.
4. The duplication of chromosomes becomes visible.
5. The coiled chromatins separate.
6. Chromosomes align at the center,
7. Chromosomes migrate toward the poles.
8. Chromosomes uncoil.
9. Two homologous chromosomes exchange genetic materials.
10. Completion of cell plate.​

Sagot :

brionesdianne897

1. The nucleolus disappears

During prophase, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down.

2.The formation of the spindle fibers is completed.

Spindle fibers are formed from microtubules with many accessory proteins which help guide the process of genetic division. Each spindle fiber forms during cellular division near the poles of the dividing cell. As they extend across the cell, they search for the centromere of each chromosome

3.The nuclear membrane disappears.

Nuclear membrane disappears in late prophase.During prophase, which occurs after G2 interphase, the cell prepares to divide by tightly condensing its chromosomes and initiating mitotic spindle formation. During interphase, the genetic material in the nucleus consists of loosely packed chromatin.

4. The duplication of chromosomes becomes visible.

The chromosomes coil and shorten, and become visible. It becomes apparent that the chromosomes have duplicated. Pairs of identical chromosomes remain attached to each other at the centromere and each chromosome is called a chromatid.

5. The coiled chromatins separate.

Chromatin is a complex of macromolecules composed of DNA, RNA, and protein, which is found inside the nucleus of eukaryotic cells. ... Chromatin fibers are coiled and condensed to form chromosomes.

6. Chromosomes align at the center,

During metaphase, the cell's chromosomes align themselves in the middle of the cell through a type of cellular "tug of war." The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.

7. Chromosomes migrate toward the poles.

Metaphase leads to anaphase, during which each chromosome's sister chromatids separate and move to opposite poles of the cell. ... More specifically, in the first part of anaphase — sometimes called anaphase A — the kinetochore microtubules shorten and draw the chromosomes toward the spindle poles.

8. Chromosomes uncoil.

Meiosis begins with Meiosis I. The first stage in Meiosis I is prophase I. During this stage the DNA condenses into chromosomes. ... Here the spindle fibers are broken up, new nuclear membranes form, the chromosomes uncoil, and the cell divides into two daughter cells.

9. Two homologous chromosomes exchange genetic materials.

Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant chromosomes.

10. Completion of cell plate.

The cell plate grows outward from the center of the cell to the parental plasma membrane with which it will fuse, thus completing cell division. Formation and growth of the cell plate is dependent upon the phragmoplast, which is required for proper targeting of Golgi-derived vesicles to the cell plate.

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