Question
I. Place the events in order as they would naturally occur during the life cycle of a dividing cell. i. cytokinesis occurs resulting in new daughter cells ii. daughter chromatids move toward the spindle poles iii. chromosomes condense from the chromatin of the nucleus iv. chromosomes are aligned along the equator of the mitotic spindle chromosomes of daughter cells are grouped in a new nucleus v. resting, DNA replication and protein-building between mitotic divisions vị. __ __ __ __ __ __ , . . -I
Solution
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(346 Votes)
Pierce
Elite · Tutor for 8 years
Answer
The correct order of events in the cell cycle is:1. **vi. Resting, DNA replication, and protein-building between mitotic divisions (Interphase):** This phase encompasses the G1, S, and G2 phases of the cell cycle. G1 is a period of cell growth and preparation for DNA replication. The S phase is when DNA replication occurs, creating identical sister chromatids. G2 is another growth phase where the cell prepares for mitosis.2. **iii. Chromosomes condense from the chromatin of the nucleus (Prophase):** The diffuse chromatin fibers condense into visible chromosomes.3. **iv. Chromosomes are aligned along the equator of the mitotic spindle (Metaphase):** The chromosomes, each consisting of two sister chromatids, line up along the metaphase plate.4. **ii. Daughter chromatids move toward the spindle poles (Anaphase):** The sister chromatids separate and are pulled to opposite poles of the cell by the spindle fibers.5. **i. Cytokinesis occurs resulting in new daughter cells (Telophase/Cytokinesis):** The chromosomes decondense, and new nuclear envelopes form around the separated chromosomes. Cytokinesis divides the cytoplasm, creating two separate daughter cells.6. **v. Chromosomes of daughter cells are grouped in a new nucleus (Telophase):** This occurs concurrently with the beginning of cytokinesis. As the cytoplasm divides, the chromosomes are already enclosed within the newly formed nuclei of the daughter cells.Therefore, the correct sequence is **vi, iii, iv, ii, v, i**.