During which phase do duplicated chromosomes become visible under a light microscope?
Mitosis has four sequential stages: prophase, metaphase, anaphase, and telophase. In prophase, each chromosome becomes condensed and more visible, and there is the breakdown of the nuclear membrane and appearance of spindle fibers. In the next phase, metaphase, the chromosomes line up along the metaphase plate.
When dividing cells are examined under a light microscope chromosomes become visible in?
The chromosomes become visible under a light microscope during prophase in mitosis.
Why are chromosomes visible under a microscope during cell division?
Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. … However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope.
During which phases of mitosis are chromosomes not visible?
It is during interphase, telophase, and cytokinesis that the chromosomes are no longer visible.
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.
Is the phase of mitosis where the genetic material chromosomes first become visible as they shorten or condense?
In the first phase of mitosis, called prophase, chromatin coils and condenses, resulting in compacted chromosomes that are visible with a light microscope.