Question

Choose the correct option from the following-

Which phase of mitosis is essentially the reverse of the prophase in terms of nuclear changes?

• A. S-phase
• B. Anaphase
• C. Telophase
• D. Interphase

Answer 1

The correct option is C

Telophase

The correct option is C
Explanation for correct option

1. In the prophase of the cell cycle, DNA condenses into highly compact coiled structures called the chromosomes. The nuclear membrane around the genetic material disappears to facilitate the replication of genetic material.
2. In telophase, the two sets of chromosomes are uncoiled in two daughter cells, spindle fiber disappears, and the nuclear membrane is formed around each nucleus of the daughter cell. Hence, telophase can be considered as the reverse of prophase.

Explanation for the wrong options

Option A

1. In the S phase replication of DNA occurs.It is the part of the interphase or the resting phase of the cell cycle.

Option B

1. In anaphase, the centromeres of sister chromatids split and they move to opposite poles. This is brought about by the spindle fibers.

Option D

1. The interphase is the longest phase of the cell cycle in which the cell prepares itself for division. This occurs by the replication of DNA and conduction of other cellular activities.

Final answer

Telophase of mitosis is essentially the reverse of prophase in terms of nuclear changes.