What happens in each step 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 happens in the 3 stages of mitosis?
The stages of mitosis are: prophase, metaphase, anaphase and telophase.
The stages of mitosis in detail.
|Prophase||The DNA in chromosomes and their copies condenses to become more visible. The membrane around the nucleus disappears.|
What are the 4 steps to mitosis?
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
What happens during anaphase of mitosis?
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle. … The separated chromosomes are then pulled by the spindle to opposite poles of the cell.
What are the 4 stages of the cell cycle?
In eukaryotes, the cell cycle consists of four discrete phases: G1, S, G2, and M. The S or synthesis phase is when DNA replication occurs, and the M or mitosis phase is when the cell actually divides. The other two phases — G1 and G2, the so-called gap phases — are less dramatic but equally important.
What happens in stage 2 of mitosis?
When prophase is complete, the cell enters prometaphase — the second stage of mitosis. During prometaphase, phosphorylation of nuclear lamins by M-CDK causes the nuclear membrane to break down into numerous small vesicles. As a result, the spindle microtubules now have direct access to the genetic material of the cell.
What are the 5 stages of mitosis in order?
Mitosis is divided into five phases:
- Interphase: The DNA in the cell is copied in preparation for cell division, this results in two identical full sets of chromosomes?. …
- Prophase: The chromosomes condense into X-shaped structures that can be easily seen under a microscope. …
- Metaphase: …
- Anaphase: …