It's generally agreed upon that chromosomes become visible during prophase of the cell cycle. Some scientists will say prometaphase (sort of a bridge between prophase and metaphase). Mitosis would occur after telophase of the cell cycle (Prophase, Metephase, Anaohase, Telophase).
The phase of mitosis in which the chromosomes become invisible is during interphase. This is because the chromatin is unwound and therefore barely visible so the cell seems inactive. However, interphase is actually a very active time.
Source: Third Edition- Biology Concepts and Investigations. Marielle Hoefnagels. Page 154
Interphase because there is just the solid DNA
Interphase also known when you have fun with yourself
The chromosomes become visible during the prophase stage of cell division.
Telephase
Interphase and Telophase
The phase of mitosis where the chromatin fibers duplicate and condense into visible chromosomes is Interphase. Interphase is the first stage of the cell cycle.
Interphase Prophase Metaphase Anaphase Telephase.
Interphase as they become decondenced
Metaphase is when chromosomes attatch to spindle fibers in the phase of mitosis.
Chromosomes first become visible during prophase of mitosis when they condense and coil up tightly. This allows them to be easily seen under a microscope as separate structures.
Prophase
Interphase and Telophase
Prophase.
The phase of mitosis where the chromatin fibers duplicate and condense into visible chromosomes is Interphase. Interphase is the first stage of the cell cycle.
Interphase Prophase Metaphase Anaphase Telephase.
The chromosomes in a cell's nucleus are only visible during the part of the cell cycle known as prophase. Prophase is the stage of mitosis in which chromatin condensation occurs.
In interphase the chromosomes are not yet visible but become visible in prophase
Interphase as they become decondenced
Interphase as they become decondenced
Prophase
probably Telophase