Why do you think Whitefish blastula cells were chosen for this experiment on mitosis rather than cells from an adult fish?
Explain why whitefish blastula and onion root tip are selected for the study of mitosis. 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.
Why is the blastula a prime specimen for observing mitosis?
Whitefish blastula: The developing embryo of any organism is a good tissue to examine for mitosis, since cells must divide at a high rate to transform a fertilized egg (single cell) into the trillions of cells of a viable organism.
How does mitosis differ in a Whitefish blastula as compared to the onion root tip?
While the onion root cells tend to be arranged in a planar fashion, the whitefish blastula is more spherical. As a result, the whitefish cells are oriented in a less orderly fashion than the regular, patterned.
What is the purpose of interphase?
Interphase is the phase of the cell cycle in which a typical cell spends most of its life. Interphase is the ‘daily living’ or metabolic phase of the cell, in which the cell obtains nutrients and metabolizes them, grows, replicates its DNA in preparation for mitosis, and conducts other “normal” cell functions.
Which phase of mitosis is this Whitefish blastula cell in?
Prophase Whitefish Blastula Cell. The arrows (A) in the photo point to a cell in the prophase stage of mitosis. During this stage the chromosomes become visible, the nucleoli disappear, the nuclear membrane is broken down and the spindle begins to take form.
What is Whitefish interphase?
Interphase Whitefish Blastula Cell. Cell Division – Mitosis – in Whitefish Blastula Cells. This cell is in the interphase stage of the cell cycle. Early in interphase the cell (A) reaches its full size and then starts preparing for its next division.
What stage of mitosis is this Whitefish blastula in what are the A and B structures?
Why do we use plant root tips instead of animal cells to study mitosis?
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.
What are the similarities between Whitefish and onion?
The occurrence related to these development stages is similarin both whitefish blastula and onion cells. The two cells are eukaryotic meaning that similarities include mitochondria, cell membrane,endoplasmic reticulum, Golgi apparatus, and ribosomes.
Why should a cell go through interphase before entering mitosis?
Before a cell can enter the active phases of mitosis, however, it must go through a period known as interphase, during which it grows and produces the various proteins necessary for division.
Why is it important for cells of multicellular organisms to undergo mitosis?
Multicellular organisms depend on mitosis for growth and repair. When an animal, plant or other multicellular organism grows, it makes more cells through mitosis. Organisms can repair some of their tissues, using mitosis to regenerate new cells.
Why is the whitefish used to study mitosis?
Why is the whitefish used to study mitosis quizlet?
Why does mitosis occur in the Whitefish embryo?
The whitefish embryo is a good place to look at mitosis because these cells are rapidly dividing as the fish embryo is growing. This is why mitosis is only visible in cells that are dividing, like the whitefish embryo and the onion root tip. Mitosis can take several hours to complete. Click to see full answer
What do cells undergo mitosis the fastest?
– Skin cells – Bone cells – Blood cells – Liver cells – Stomach cells – Stem, root, leaves (in plants) – Etc
What type of cells does mitosis result in?
Three types of cells in the body undergo mitosis. They are somatic cells, adult stem cells, and the cells in the embryo. Somatic cells – Somatic cells are the regular cells in the body of multicellular organisms. What type of cells do we produce in mitosis? Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.