The first and longest phase of mitosis is prophase . During prophase, chromatin condenses into chromosomes, and the nuclear envelope (the membrane surrounding the nucleus) breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles of the cell.
Which phase of mitosis takes the longest and why?
Now, going through all these processes, we saw that there were a lot of activities involved in Prophase . Also, it is divided into an early and late stage. So clearly, the longest phase of the Mitosis is Prophase. Hence, the correct answer is option (A).
Which phase of mitosis is the shortest and why?
In anaphase , the shortest stage of mitosis, the sister chromatids break apart, and the chromosomes begin moving to opposite ends of the cell.
Which phase is the longest stage and why?
During interphase , the cell undergoes normal growth processes while also preparing for cell division. It is the longest phase of the cell cycle, cell spends approximately 90% of its time in this phase. In order for a cell to move from interphase into the mitotic phase, many internal and external conditions must be met.
Which mitosis phase is longest and shortest?
In concern to the above question, The correct answer is option D. Note: The shortest phase of the cell cycle is the Mitotic phase (M phase) and the longest phase of the cell cycle is G-1 phase .
What is the shortest phase of meiosis?
(e) Metaphase II . Hint: The shortest phase is a part of Meiosis I in cell division. It involves the separation of homologous chromosomes, which start moving towards the opposite poles after they are aligned at the equator.
Why is cytokinesis the shortest phase?
The shortest phase of the cell cycle is cytokinesis because all the previous stages help prepare the cell to divide, so all the cell has to do is divide and nothing else . What happens during mitosis? Chromosomes are pulled to opposite ends of the cell.
Which phase of mitosis is longest?
The first and longest phase of mitosis is prophase . During prophase, chromatin condenses into chromosomes, and the nuclear envelope (the membrane surrounding the nucleus) breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles of the cell.
Why is mitosis the shortest phase?
Anaphase is considered the shortest stage of the cell cycle because this stage involves only the separation of sister chromatids and their migration ...
What phase does a cell spend the least time in?
Root tip cells spend the least amount of time in which phase (s)? Metaphase and anaphase ; these stages are intermediary steps where the chromosomes line up and then separate. There is little preparation required for these phases. Why do you think scientists use the root tip to study mitosis?
What 4 phases make up mitosis?
These phases are prophase, prometaphase, metaphase, anaphase, and telophase .
What is the longest phase of meiosis?
Prophase I is the longest and arguably most important segment of meiosis, because recombination occurs during this interval.
Why is cell division called a cycle?
Cell cycle is the name we give the process through which cells replicate and make two new cells . ... This is where the cell actually partitions the two copies of the genetic material into the two daughter cells. After M phase completes, cell division occurs and two cells are left, and the cell cycle can begin again.
Which is the shortest phase of Karyokinesis?
What is the shortest phase of Karyokinesis? Prophase is the shortest phase where condensation of the chromosomes takes place.
Which is the longest phase in Karyokinesis?
Prophase I
It is of longest phase of karyokinesis of meiosis.
What is the longest phase of interphase?
S Phase (Synthesis of DNA)
The synthesis phase of interphase takes the longest because of the complexity of the genetic material being duplicated.
