In eukaryotic cells, which occurs during the prophase of mitosis?
A) duplication of chromatids
B) replication of DNA
C) separation of sister chromatids
D) breakup of the nuclear envelope
E) appearance of the nuclear envelope

Question

In eukaryotic cells, which occurs during the prophase of mitosis?
A) ​duplication of chromatids
B) ​replication of DNA
C) separation of sister chromatids
D) ​breakup of the nuclear envelope
E) ​appearance of the nuclear envelope

Quizplus · Accepted Answer

During the prophase of mitosis, the nuclear envelope breaks down, allowing the spindle fibers to attach to the chromosomes. This allows for the mobility and separation of the chromosomes during later stages of mitosis. A) Duplication of chromatids occurs during the S phase of interphase. B) Replication of DNA also occurs during the S phase of interphase. C) Separation of sister chromatids occurs during anaphase of mitosis. E) Appearance of the nuclear envelope occurs during telophase of mitosis.

In Eukaryotic Cells, Which Occurs During the Prophase of Mitosis