Students modeled the changes in cells during mitosis, using paper plates, flat wooden sticks, cotton swabs, and construction paper.Which statement correctly uses the model to explain how mitosis maintains genetic continuity?Crossing-over occurs in cell 4, which increases the genetic diversity in cells 6 and 7.The independent assortment that is represented in cell 2 ensures that cell 3 has the correct number ofchromosomes.When the nuclear membrane reforms in cell 5, each nucleus becomes diploid in number.The chromosomes in cell 1 are the same as in cells 6 and 7.

The statement that correctly uses the model to explain how mitosis maintains genetic continuity is: "The chromosomes in cell 1 are the same as in cells 6 and 7."

Here's why:

1. Mitosis is a process of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus. This is typical of ordinary tissue growth.

2. The first statement about crossing-over is incorrect because crossing-over occurs during meiosis, not mitosis. Crossing-over is a process that creates genetic diversity, which is not the goal of mitosis.

3. The second statement about independent assortment in cell 2 is also incorrect. Independent assortment is another feature of meiosis, not mitosis.

4. The third statement about the nuclear membrane reforming in cell 5 is partially correct. The nuclear membrane does reform during telophase, the last stage of mitosis. However, the cells do not become diploid at this point. They were diploid to begin with and remain so throughout the process.

5. The last statement is correct. The chromosomes in the parent cell (cell 1) are indeed the same as in the daughter cells (cells 6 and 7). This is because the goal of mitosis is to produce two cells that are genetically identical to the parent cell.