Biology STAAR Practice Test 2025 – Comprehensive All-in-One Guide to Mastering the State of Texas Readiness Exam!

Question: 1 / 400

Why must DNA replication occur?

To produce energy for the cell

Before a cell can divide

DNA replication is essential before a cell can divide because it ensures that each daughter cell receives an exact copy of the genetic material. During the process of cell division, specifically during mitosis or meiosis, the cell duplicates its chromosomes, which are made of DNA. If DNA replication does not occur, the new cells would not have the complete set of genetic instructions necessary for their functions, leading to potential issues with growth, development, and overall cellular function.

The replication process involves unwinding the double helix and synthesizing two new strands complementary to each original strand, ensuring that the genetic information is accurately passed on. This accuracy in replication is crucial for maintaining the integrity of the organism's genetic information throughout generations of cells. Hence, it is a vital step in cellular reproduction.

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To synthesize proteins for the cell

To repair damaged cells

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