Mitosis consists of five morphologically distinct phases: prophase, prometaphase, metaphase, anaphase, and telophase. Each phase involves characteristic steps in the process of chromosome alignment and separation.
What stages occur during the mitotic phase?
Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
What is the mitotic process?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. … Mitosis is conventionally divided into five stages known as prophase, prometaphase, metaphase, anaphase, and telophase.
What are the 4 stages of mitosis and what happens in each?
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 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 two processes are involved in mitotic?
Thus, the two processes are karyokinesis and cytokinesis.
What phase of mitosis do daughter cells form?
Telophase is the fifth and final phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. Telophase begins once the replicated, paired chromosomes have been separated and pulled to opposite sides, or poles, of the cell.
What are the components of the mitotic spindle What is the source of these components?
The spindle microtubules elongate (polymerize) by incorporating more subunits of the protein tubulin and shorten (depolymerize) by losing subunits. The source of these components is the cytoplasm during prophase.
What are the 3 stages of cell division?
The cell cycle is composed of 3 main stages – interphase, mitosis and cytokinesis.
What are the stages of mitosis and meiosis?
Meiosis and mitosis both have a prophase, metaphase, anaphase, telophase and cytokinesis.
What is the first stage in mitosis?
Prophase is the first stage in mitosis, occurring after the conclusion of the G2 portion of interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.
What are the 7 stages of the cell cycle?
Terms in this set (7)
- Interphase. Cell performs normal functions, Cell growth (G1 and g2), Synthesizes new molecules and organelles.
- Prophase. …
- Prometaphase. …
- Metaphase. …
- Anaphase. …
- Telophase. …
What happens in the G1 phase?
G1 phase. G1 is an intermediate phase occupying the time between the end of cell division in mitosis and the beginning of DNA replication during S phase. During this time, the cell grows in preparation for DNA replication, and certain intracellular components, such as the centrosomes undergo replication.
What are the 5 parts of the cell cycle?
The five parts of the cell cycle are: