Why does telophase take the shortest

The first three phases of the cell cycle, G1, S, and G2 are collectively known as interphase. The following phase of the cell cycle, mitosis, is divided into the five distinct stages of prophase, prometaphase, metaphase, anaphase, and telophase. We describe the processes involved in each stage of mitosis below.

Mitosis is a form of cell division that produces two identical daughter cells containing the same genetic material as the parent cell. During mitosis, the chromosomes produced during the preceding synthesis phase are divided so that each of the resultant daughter cells contains one copy of every chromosome.

The first stage of mitosis is prophase. Roughly half of the time that cells spend in mitosis is spent in prophase. Next, the centrosome is replicated to create two daughter centrosomes. These structures then move towards opposing ends of the cell. It is the responsibility of the centrosomes to organize the synthesis of the microtubules that come together to create the mitotic spindle. At the end of prophase, the chromosomes condense and can be seen to contain two sister chromatids that are joined by a region of DNA known as the centromere.

Prometaphase follows prophase. During this second stage of mitosis, the centromeres of the chromosomes are led by their centromeres to the equatorial plane in the center of the cell and settle in the region known as the metaphase plate. Here, the fibers of the mitotic spindle bind to a structure located on each side of the centromere known as the kinetochore.

During this phase, the chromosomes continue to condense. Next, the cells enter metaphase, where the chromosomes simply align themselves along the metaphase plate, leaving the two chromosomes side by side along the central horizontal plane of the cell. Each half of the chromosome moves away from its previously adjoining half as the spindle fibers pull them towards opposite ends of the cell. These separated sister chromatids are referred to as daughter chromosomes.

Now the cell is ready to enter telophase. This is the shortest and final phase of mitosis. During telophase, many of the processes that occurred in prophase are reversed. This phase sees the reformation of the nuclear membrane, enclosing the chromosomes at either pole of the cell. Following this, the chromosomes then uncoil and become diffuse.

At this stage, the spindle fibers are no longer visible. Following this final stage of mitosis is cytokinesis where the final step of cell division takes place. This results in the formation of two identical daughter cells.

From here, the cell then reenters interphase, before it begins the process of replication again. The rapid and uncontrolled proliferation of cells is the hallmark of cancer. Mitosis, as discussed above, is the process that governs cell replication. For this reason, the process of cell division has become a key focus of cancer research. What happens during mitosis?

Chromosomes are pulled to opposite ends of the cell. During interphase , the cell undergoes normal growth processes while also preparing for cell division. Diplotene phase is the longest phase of prophase I of meiosis I in oocytes only and can last for months or years.

Cardiac cells i. Wall of Heart and cardiac muscle both are diploids and do not divide. They only elongate and grow. Permanent cells are cells that are incapable of regeneration. These cells are considered to be terminally differentiated and non-proliferative in postnatal life.

This includes neurons, heart cells, skeletal muscle cells and red blood cells. The Question: Which cells in the human body are never replaced? The Short Answer: So far, the only cell type that we can confidently say is never replaced is cerebral cortex neurons. Why is telophase the shortest phase? Asked by: Ms. Zaria O'Keefe. What are the only 2 cells in the human body that do not do mitosis?

What's the longest phase of mitosis? Which cell phase is the longest? What phase does a cell spend the least time in? Which is the shortest phase of meiosis? Which is the longest phase of meiosis? After this occurs cytokinesis begins. During cytokinesis the cytoplasm of the cell divides and forms two separate cells. World View. More From Reference. Caves: Nature's Majestic, Mysterious Wonders.

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