A team of students prepare a model of meiosis that shows the following steps:
1. The parent cell’s DNA replicates.
2. The nucleus disappears, and sister chromatids form chromosomes.
3. Chromosomes line up in the center of the cell.
4. Sister chromatids are pulled to opposite ends of the cell.
5. Two new nuclei form, and the cell divides.
6. Steps 1 through 5 occur again in each new cell.
Which revision of this model (if any) would improve its accuracy?
Step 5 should only occur once (not a second time, as Step 6 says it should) because a second cell division would create too many daughter cells
Step 1 should only occur once (not a second time, as Step 6 says it should) because meiosis results in cells with half the number of chromosomes as the original cell.
Step 6 should not occur because meiosis ends at step 5.
No revisions are necessary; the model is accurate.
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A team of students prepare a model of meiosis that shows the following steps:
1. The parent cell’s...
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