What must occur first before a cell can divide?
Mitosis itself consists of five active steps, or phases: prophase, prometaphase, metaphase, anaphase, and telophase. 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.
Which process must occur first before any cell division can take place apex?
Answer: Fertilization is first!
What must happen in order for cells to divide?
What must happen to the DNA strands in the nucleus before the cell can divide? The DNA must copy itself. This is necessary so that each of the two cells produced will have the correct number of chromosomes.
What are the 3 types of cell division?
There are three main types of cell division: binary fission, mitosis, and meiosis. Binary fission is used by simple organisms like bacteria. More complex organisms gain new cells by either mitosis or meiosis. Mitosis is used when a cell needs to be replicated into exact copies of itself.
What are two main reasons cells divide?
Two reasons that cells divide is because of meiosis and because of mitosis. Meiosis has to do with reproduction and mitosis has to do with cell repair or replacement.
Which organelle or part of the cell is the most important?
What organelle is the least important?
The ribosome may be the smallest organelle in the cell, but it plays an important part. The ribosomes are vital to the cell; they make proteins for the cell to survive. Without the nucleus making the ribosomes, the cell would die.
What happens if ribosomes are damaged?
The researchers found that the defective ribosomes tend to make a specific kind of mistake when translating the genetic code. This mistake changes specific patterns of gene expression in cells, consistent with changes that can lead to cancer. The mistakes make an already unstable set of molecules even more unstable.