Biology for IGCSE & O level - Inheritance (Section 10 - No. 22)
Which of the following events occur during prophase of mitosis? (Select all that apply)
The nuclear envelope breaks down.
Chromosomes condense.
Sister chromatids separate.
Spindle fibers begin to form.
Explicação
During prophase, the nuclear envelope breaks down, chromosomes condense, and spindle fibers form.