When during the cell cycle are chromosomes visible?
The chromosomes first visible in Metaphase during the cell cycle.
At what time will the chromosome shown be split into two chromosomes?
The spindle fibers will move the chromosomes until they are lined up at the spindle equator. Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate. Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.
Which event will likely occur next in a eukaryotic cell that is ending prophase see figure and will next enter Prometaphase?
Which event will likely occur next in a eukaryotic cell that is ending prophase (see figure) and will next enter prometaphase? The chromosome material will condense. Chromosomes will be moved toward alignment at the metaphase plate.
Are chromosomes visible in interphase?
During interphase, individual chromosomes are not visible, and the chromatin appears diffuse and unorganized.
Why do chromosomes become visible during mitosis?
Why are chromosomes visible during mitosis? Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope.
What happens during telophase II?
In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense. Cytokinesis splits the chromosome sets into new cells, forming the final products of meiosis: four haploid cells in which each chromosome has just one chromatid.
How does segregation happen during anaphase 2?
There are two ways in which non-disjunction can occur: 1) both homologous chromosomes migrate together to one pole instead of separating to opposite poles in Anaphase I or 2) sister chromatids fail to separate properly and both sister chromatids move together to one pole instead of to opposite poles in Anaphase II.