How Many Times Do Cells Divide During Meiosis? Meaning And Answer To The Question
MEIOSIS – In this topic, we will now talk about the process called meiosis, its definition and how many times do cells divide during this process.
Let us ask ourselves this particular question: “What is meiosis?”
It is a process where a single cell divides two times in order to produce more cells which contains half the original amount of genetic information. In other words, these are our reproductive cells: sperm for male; while ovaries in females.
During This Process
One cell will divide into two to create four daughter cells called haploids. They produce gametes or our reproductive cells.
Answer To The Question
The answer is cells divide two times, with nine stages, split into each of the two process: When the cell began to divide and the second time it does it again.
- Meiosis I
- Interphase – the DNA in the cell is doubled. Outside the nucleus of the cell are two centrosomes with each having pair of centrioles, where microtubules extend
- Prophase I – The doubled chromosome condense into an X-shaped form and is composed of two sister chromatids and pairs up to be together. The meiotic spindle would then extends across the cell between centrioles.
- Metaphase I – The chromosome pairs line up nest to each other with the center of the cell with the centrioles at the opposite poles of the cell. The meiotic spindle attach to one chromosome of each pair
- Anaphase I – They would then pull apart by the meiotic spindle.
- Telophase I and Cytokinesis – The chromosomes complete their action to the opposite poles of the cell. The membrane forms surrounding each set to make two nuclei. The cell then pinches in the middle to form two
- Meiosis II
- Prophase II – There are now two daughter cells, each with 23 chromosomes. The chromosomes from two daughter cells condense into a visible X-shaped structure. The membrane dissolves while the meiotic spindle reforms
- Metaphase II -The chromosomes line up from end to end along the equator of the cell. Meiotic spindle attach to each of the chromatids
- Anaphase II – The chromatids puuld to the opposite poles because of the meiotic spindle
- Telophase II and Cytokinesis – The chromosomes complete their action to the opposite poles of the cell. The membrane forms surrounding each set to make two nuclei. This is the last phase of the process.