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?
Where does the cell spend least of its time in mitosis?
Anaphase is the shortest phase of mitosis. In anaphase, the sister chromatids are pulled apart to opposite ends of the cell. In metaphase, chromosomes line up along the metaphase plate. Metaphase takes a short amount of time to complete.
Which phase do cells spend the least time?
Usually, cells will take between 5 and 6 hours to complete S phase. G2 is shorter, lasting only 3 to 4 hours in most cells. In sum, then, interphase generally takes between 18 and 20 hours. Mitosis, during which the cell makes preparations for and completes cell division only takes about 2 hours.
Do cells spend most of their time in mitosis?
Mitosis is an important part of the cell cycle and involves the replication of the genetic material in the cell. … this is because, cell spends approximately the same amount of time in each mitotic phase (prophase, metaphase, anaphase, telophase).
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 stage of mitosis is hardest to identify?
DNA is most difficult to visualize at prophase stage of mitosis. Explanation: At prophase stage, no well defined chromosomes are present. DNA is present in the form of thin chromatin fibers that are difficult to visualize under microscope.
What cell organelle holds your DNA?
The nucleus is the most conspicuous organelle found in a eukaryotic cell. It houses the cell’s chromosomes and is the place where almost all DNA replication and RNA synthesis occurs. The nucleus is spheroid in shape and separated from the cytoplasm by a membrane called the nuclear envelope.
What happens during each phase of mitosis?
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope …
What are the four stages in mitosis in order?
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
Why do cells spend a significant portion of mitosis in Prophase?
When a living organism needs new cells to repair damage, grow, or just maintain its condition, cells undergo mitosis. During Prophase, the DNA and proteins start to condense. The two centrioles move toward the opposite end of the cell in animals or microtubules are assembled in plants to form a spindle.