Why is it important for DNA to be duplicated before mitosis?

It is important for DNA to be duplicated before mitosis because:

1. Ensures Genetic Consistency: DNA duplication ensures that each daughter cell receives an exact copy of the parent cell's genetic material. This is crucial for maintaining genetic consistency across cells.

2. Facilitates Cell Function: Each cell requires a complete set of DNA to function properly. By duplicating DNA before mitosis, each daughter cell has the necessary genetic information to perform its functions.

3. Supports Growth and Repair: In multicellular organisms, mitosis is essential for growth and tissue repair. DNA duplication ensures that new cells have the same genetic information as the original cells, allowing for proper growth and repair.

4. Prevents Genetic Disorders: Accurate DNA replication minimizes the risk of mutations and genetic disorders that could arise from incomplete or faulty DNA transmission during cell division.

In summary, DNA duplication before mitosis is crucial for genetic stability, proper cell function, and the overall health of an organism.