The centrioles duplicate in ________ phase of Mitosis .
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The centrioles duplicate in S phase of Mitosis .
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The centrioles duplicate in the S phase of Mitosis.
Explanation:
In the cell cycle, the newly generated DNA is divided during the process of mitosis, which also results in the formation of two new cells with the same number and type of chromosomes as the parent nucleus.The majority of the cell's life is spent in the interphase, just before the prophase, where mitotic preparations are undertaken (the DNA is copied). The prophase is technically the first stage of this process, though, because the actual process requires the division of the nucleus.
Following are the several steps of mitosis that take place during cell division
1. Interphase: A cell spends a portion of its growth cycle in interphase before initiating mitosis. When in interphase, it goes through the following phases:
- The G1 Phase is the time frame prior to DNA synthesis.
- The phase during which DNA synthesis occurs is known as the S phase.
- Between the conclusion of DNA synthesis and the start of the prophase is the G2 phase.
2. Prophase: The cycle's prophase, which comes just after the S and G2 phases, is characterised by the condensing of the genetic material into compact mitotic chromosomes made of two chromatids joined at the centromere. The start of the construction of the mitotic spindle, the microtubules, and the proteinaceous cytoplasmic elements that aid in the process marks the end of the prophase. The nuclear envelope begins to fall apart.
3. Prometaphase: The nuclear envelope ruptures in the prometaphase. The centromere to the chromosome microtubules is now free to expand. The kinetochores are attached to the microtubules, enabling the cell to transport the chromosome.
4. Metaphase: At this point, the chromosomes begin to be pulled by the microtubules equally, and they end up at the centre of the cell. The metaphase plate refers to this area. As a result, every cell receives a fully functional genome.
5. Anaphase: Anaphase begins with the separation of the sister chromatids. These sister chromatids develop into the daughter nuclei's chromosomes. The fibres connected to each chromosome's kinetochores then tug the chromosomes in that direction. Each chromosome's centromere leads at the edge while the arms follow.
As the nuclear membrane begins to form surrounding it, the chromosomes that are clustered at the two poles start to coalesce into an undifferentiated mass. After disappearing after prophase, the nucleolus, Golgi bodies, and ER complex begin to return.
To learn more about S Phase, click on the links below:
https://brainly.in/question/30812068?msp_srt_exp=5
https://brainly.in/question/15583742?msp_srt_exp=5
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