The chromosomes first become visible during prophase, which is the second phase during mitosis.
Chromosomes first become visible during the 2nd Phase of Mitosis also known as Prophase. ;
Chromosomes first become visible during the Prophase stage of mitosis. In this phase, chromatin condenses into distinct chromosomes, the nucleolus disappears, and the nuclear envelope breaks down. This preparation is essential for the proper separation of genetic material during cell division.
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