Question

During telophase, each pair of sister chromatids finishes moving to opposite sides of the cell. Two new nuclei (one for each set of chromosomes) are formed.

Answer 1

Yes, that's correct! During telophase, which is the final stage of mitosis (or meiosis), the separated sister chromatids reach opposite poles of the cell. Here’s a bit more detail on what happens:

1. **Chromosome Decondensation**: The sister chromatids, once tightly packed, begin to decondense back into their less compact chromatin form.

2. **Nuclear Envelope Formation**: Two new nuclear envelopes form around each set of chromosomes at both poles of the cell, creating two distinct nuclei.

3. **Correct Chromosome Count**: Each nucleus will contain the same number of chromosomes as the original cell, ensuring that the genetic material is properly divided.

4. **Spindle Disassembly**: The mitotic spindle (the structure that helps separate the chromatids) disassembles.

5. **Preparation for Cytokinesis**: As telophase progresses, the cell prepares to undergo cytokinesis, the process that will ultimately divide the cytoplasm and produce two separate daughter cells.

This phase is essential for ensuring that each daughter cell receives an identical set of chromosomes, maintaining genetic consistency across cell divisions.