Question
Biology Question on cell cycle and cell division
During mitosis, ER and nucleolus begin to disappear at
A
late prophase
B
early metaphase
C
late metaphase
D
early prophase.
Answer
late prophase
Explanation
Solution
Prophase is the first stage in both mitosis and meiosis of cell division. At interphase, the two copies of the identical chromosomes are replicated forming sister chromatids. They then enter the prophase and start chromosome condensation and disappearance of the nucleolus along with the endoplasmic reticulum.