During which phase does the nuclear envelope begin to break down?
Understand the Problem
The question is asking about a specific phase of cell division where the nuclear envelope begins to break down. The user needs to identify the correct phase from the provided options.
Answer
Prophase and prometaphase
The nuclear envelope begins to break down during prophase and is completed during prometaphase.
Answer for screen readers
The nuclear envelope begins to break down during prophase and is completed during prometaphase.
More Information
The nuclear envelope begins to break down during prophase, which is the first phase of mitosis. This process completes in the subsequent phase, known as prometaphase, wherein spindle fibers attach to chromosomes.
Tips
A common mistake is to think the entire breakdown happens in prophase. It's important to note that it starts in prophase and is completed in prometaphase.
Sources
- prometaphase | Learn Science at Scitable - Nature - nature.com
- Phases of mitosis | Mitosis | Biology (article) - Khan Academy - khanacademy.org
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