What happens in each mitosis phase?
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.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 …
What happens to the cell during mitosis?
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. … Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
How many chromosomes will each daughter cell have after mitosis?
At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 15 chromosomes.
How many chromosomes do daughter cells have in mitosis?
At this point, nuclear division begins, and the parent cell is divided in half, forming 2 daughter cells. Each daughter cell will have half of the original 46 chromosomes, or 23 chromosomes.
How are chromosomes evenly divided during mitosis?
Chromosomes are divided when the spindle fibers drag sister chromatids to opposite ends of the cell. The division is complete when the changes from the bottom to the top of the tissue.
How are chromosomes arranged during this phase?
The correct answer is option (b) metaphase.
During metaphase chromosomes are arranged on a plane which is known as equatorial plate. Metaphase is a stage in which the eukaryotic cell division takes places resulting the alignment of chromosomes in the middle of the cell.
Why does DNA replication occur before mitosis?
DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!