Which stage of mitosis is represented in the onion root figure above?
The photomicrograph below depicts onion root tip cell chromosomes in metaphase, ready for separation. The kinetochore and polar microtubules are clearly visible and radiate out the ends of the cell leaving the chromosomes in the middle of the complex.
Why are some cells in the onion root tip undergoing mitosis quizlet?
Mitosis is just the cell’s nucleus dividing into 2 separate nuclei, not the cell. … These plants are selected because whitefish blastula and onion root tip have cells that rapidly divide, making it easier to see the different stags of mitosis under a microscope.
Which of the following occurs during telophase in an onion root tip?
During telophase, the chromosomes at either end of the cell cluster begin to cluster together, which facilitates the formation of a new nuclear membrane. This also is when cytokinesis occurs, leading to two separate cells.
In which stage were most of the onion root tip cells how would you explain this finding?
In the onion root tip, in what cell cycle stage were most of the cells? What does that imply about the life span of the cell? The cells cycle stage that most of the cells were in was interphase.
Which phase is the onion cell in?
1: Cells in an onion root in interphase and prophase. Cell A has a large, dark nucleolus surrounded by greyish material (chromatin) that is enclosed within the nuclear membrane.
What is mitosis and list the stages?
Mitosis has four stages: prophase, metaphase, anaphase, and telophase. Encyclopædia Britannica, Inc. mitosis, a process of cell duplication, or reproduction, during which one cell gives rise to two genetically identical daughter cells.
Why are onion root tip cells ideal for studying the cell cycle quizlet?
Why is an onion root tip a good place to look for dividing cells? Rapidly growing part of the onion, indicates many cells will be in different stages of mitosis. How do plant cells differ from animal cells in cell division?
Why is the onion root tip used to study mitosis?
Onion root tips are commonly used to study mitosis. They are sites of rapid growth, so the cells are dividing rapidly.
Why is the root tip of an onion a good place to look for dividing cells?
The onion root is also a good place because this is the area where the plant is growing. Remember that when cells divide, each new cell needs an exact copy of the DNA in the parent cell. This is why mitosis is only visible in cells that are dividing, like the whitefish embryo and the onion root tip.
What type of cell is observed in onion root tip?
Why is onion root tip used to demonstrate mitosis in this experiment? It is because of the meristematic cells that are situated in the tip of the roots that render the most desirable and suitable raw material to study the different stages of mitosis. Onion is a monocot plant.
What is a onion root tip?
In plants, the roots continue to grow as they search for water and nutrients. … In order to examine cells in the tip of an onion root, a thin slice of the root is placed onto a microscope slide and stained so the chromosomes will be visible.
What is the tip of an onion root called?
Allium root tip
The cells pictured below are located in the apical meristem of the onion root. The apical meristem is an area of a plant where cell division takes place at a rapid rate.