During mitosis ER and nucleolus begin to disappear at:

Options

(a) late prophase
(b) early metaphase
(c) late metaphase
(d) early prophase

Correct Answer:

early prophase

Explanation:

During mitosis. endoplasmic reticulum and nucleus begins to disappear at early prophase. Also, nucleus and cell become spherical and DNA molecules condense to form shortened chromosome.