During which stage do chromosomes line up in a single file on the equatorial plane?
This is also known as the metaphase plate. The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides. Chromosomes, consisting of sister chromatids, line up at the equator or middle of the cell during metaphase.
In what stage do the chromosomes line up along the equator of the cell?
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.
What phase do chromosomes line up single file?
In prometaphase, kinetochores appear at the centromeres and mitotic spindle microtubules attach to kinetochores. In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber. In anaphase, sister chromatids (now called chromosomes) are pulled toward opposite poles.
In which phase do the chromosomes line up in the middle of the cell quizlet?
Homologous chromosomes line up at the center of the cell (Metaphase=They MEET in the MIDDLE) Equator of cell.
What is mitosis write metaphase stage?
The third phase of mitosis is known as metaphase, which is the process that separates duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. …
During which phase do homologous chromosome pairs line up in the middle of the cell with the pairs lined up end to end so that they do not touch each other?
In prophase I of meiosis, the homologous chromosomes form the tetrads. In metaphase I, these pairs line up at the midway point between the two poles of the cell to form the metaphase plate.
In which part of the cell cycle do chromosomes align along the equator quizlet?
During metaphase, the chromosomes align down the equator of the cell. In anaphase, the sister chromatids separate.
Why do chromosomes line up single file during metaphase?
To sum it up, the metaphase plate is simply an imaginary plane that exists only during metaphase. It draws a line across the cell that is equidistant from both poles of the cell. This allows the chromosomes a place to be lined up on before they are pulled apart.
When the chromosomes line up single file at the middle of the cell we refer this to anaphase?
Mitosis is the process of cell division, and is separated into four stages. During prophase, the chromosomes condense and the nuclear envelope dissolves. During metaphase, the chromosomes align at the center of the cell. During anaphase, the sister chromatids are separated and pulled to opposite ends of the cell.
At which stage of meiosis do chromosomes align as a single file at the cell center?
During metaphase I, all of the doubled homologous chromosome pairs line up along the midline of the cell between the two centrioles. During anaphase I, the homologous chromosome pairs separate and are pulled to opposite poles of the cell by spindle fibers attached to the centrioles.