[Campbell Biology P.56] The text states that "The replication of that DNA prior to each cel... | Practice Question

The text states that "The replication of that DNA prior to each cell division transmitted copies of the DNA to what eventually became the trillions of cells of your body. As the cells grew and divided, the genetic information encoded by the DNA directed your development." Based on this information, what is the primary significance of DNA replication before cell division during an organism's development?

  • A: It ensures that each new cell receives a complete and identical set of genetic instructions.
  • B: It allows for the specialization of cells into different tissues and organs.
  • C: It facilitates the immediate expression of genes into functional proteins.
  • D: It reduces the total amount of genetic material in each subsequent cell.

Explanation

DNA replication ensures that before a cell divides, a complete and identical copy of the genetic material is made. This allows each daughter cell to receive the full genetic blueprint, which is crucial for growth, development, and maintaining cell identity and function throughout the organism's life.