During metaphase, the “change phase,” all the chromosomes are aligned on a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell.
What is equatorial phase in mitosis?
During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane. There is an important checkpoint in the middle of mitosis, called the metaphase checkpoint, during which the cell ensures that it is ready to divide.
During which phase of chromosomes are arranged in equatorial plane?
Chromosomes in metaphase get arranged at the equatorial plate (see Fig. 1).
Which stage of mitosis chromosomes are present in equatorial pole?
In metaphase, the centromeres of the chromosomes convene themselves on the metaphase plate (or equatorial plate), an imaginary line that is equidistant from the two centrosome poles.
What are the 4 stages in mitosis?
These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
What includes G1 S and G2 phases?
Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth).
In what phase does DNA double?
So during a mitotic cell cycle, the DNA content per chromosome doubles during S phase (each chromosome starts as one chromatid, then becomes a pair of identical sister chromatids during S phase), but the chromosome number stays the same.