Mitosis results in two identical cells. Explain why maintaining identical DNA in these new cells is crucial for the proper functioning of an organism.

Maintaining identical DNA ensures that the new cells can perform the same functions as the original cell, preventing errors or malfunctions that could arise from altered genetic information. This is vital for tissue repair, growth, and overall organismal health.

During which phase of the cell cycle does DNA replication occur, and why is this phase critical for successful mitosis?

DNA replication occurs during interphase. This phase is critical because it ensures that each daughter cell receives a complete and identical set of chromosomes, maintaining the genetic integrity of the organism.

Which of the following accurately describes the arrangement of chromosomes during metaphase?

Chromosomes line up in the middle of the cell.

Cell Division: Growth And Repair Lesson Plan for Grade 12th Grade

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Learning Objective

I can model the process of cell division and its importance in growth and repair.

1
Mitosis is a type of cell division that is important for growth and repair of body cells, but it does not produce sperm or egg cells.
2
Before mitosis begins, the cell duplicates its DNA during interphase so that each new cell will have the same genetic information.
3
The four stages of mitosis are prophase, metaphase, anaphase, and telophase, which can be remembered using the acronym PMAT.

Cell Division: Growth and Repair

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