Scelta multipla
In a human skin cell that is going through the cell cycle, when do the centrosomes separate?
2828
views
3. Energy & Cell Processes
Phases of Mitosis
0:45 minutiProblema 6
Domanda del libro di testo
Which of the following does not occur during mitosis? a. condensation of the chromosomes b. replication of the DNA c. separation of sister chromatids d. spindle formation
Guida verificata passo dopo passo1
Step 1: Understand the process of mitosis. Mitosis is a part of the cell cycle where replicated chromosomes are separated into two new nuclei. This results in two identical daughter cells, each containing the same number of chromosomes as the parent cell.
Step 2: Review each of the options in the context of the mitosis process. Option a) condensation of the chromosomes, this happens during prophase, the first stage of mitosis. Option c) separation of sister chromatids, this occurs during anaphase, a later stage of mitosis. Option d) spindle formation, this also happens during prophase.
Step 3: Consider option b) replication of the DNA. DNA replication is a crucial part of cell division, but it does not occur during mitosis. Instead, it happens during the S phase of the cell cycle, which is part of interphase, before mitosis begins.
Step 4: Therefore, the correct answer is option b) replication of the DNA, as this does not occur during mitosis.
Risposta video verificata per un problema simile:Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
45sConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Mitosis
Mitosis is the process of cell division that results in two genetically identical daughter cells from a single parent cell. It consists of several stages: prophase, metaphase, anaphase, and telophase, during which the chromosomes are condensed, aligned, separated, and finally divided into two new nuclei.
Video consigliato:
Percorso guidato
03:21
Phases of Mitosis
Chromosome Condensation
Chromosome condensation is a critical process that occurs during prophase of mitosis, where the chromatin fibers become tightly packed into distinct chromosomes. This condensation is essential for the chromosomes to be moved efficiently during cell division, preventing entanglement and ensuring accurate segregation.
Video consigliato:
Percorso guidato
06:51Organization of DNA in the Cell
DNA Replication
DNA replication is the process of copying the entire DNA molecule before cell division, which occurs during the S phase of the cell cycle, not during mitosis itself. This ensures that each daughter cell receives an identical set of chromosomes, but it is not a part of the mitotic process.
Video consigliato:
Percorso guidato
03:37Introduction to DNA Replication
Video correlati
Pratica correlata