Never visible to naked eye.Visible to light microscope during cell division
Chromosomes are visible during prophase. Chromosomes are only visible in cells during the cell division because the DNA and protein that the chromosomes are made of are spread throughout the nucleus.
dividing
When a cell is preparing to divide, the chromosomes coil so that they become visible.
Chromosomes are visible in the cell nucleus during mitosis and meiosis.
spindle fibers
The chromosomes are not visible.
Chromosomes are visible during prophase. Chromosomes are only visible in cells during the cell division because the DNA and protein that the chromosomes are made of are spread throughout the nucleus.
The chromosomes
Chromosomes.
In a normal eukaryotic cell which is not actively dividing, chromosomes are not visible. The DNA is loosely coiled, dispersed through the nucleoplasm. However, during cell division, the DNA condenses into ordered structures called chromosomes, which are visible under the microscope.
Interphase
dividing
When a cell is preparing to divide, the chromosomes coil so that they become visible.
During Prophase
Chromosomes are visible in the cell nucleus during mitosis and meiosis.
spindle fibers
DNA is visible during mitosis (replication) when the chromosomes condense.