Which cellular process is responsible for the replication of DNA?

Which cellular process is responsible for the replication of DNA?

• A. Transcription
• B. Translation
• C. Cell division
• D. DNA replication

Answer: (D)

DNA replication is the cellular process responsible for copying the DNA before a cell divides, ensuring that each daughter cell receives an exact copy of the genetic material. This process occurs during the S phase of the cell cycle and is crucial for maintaining genetic consistency across generations of cells. During DNA replication, enzymes like DNA polymerase play key roles in unwinding the double helix and synthesizing new strands complementary to the original DNA template. Transcription, on the other hand, involves synthesizing RNA from a DNA template and is a different part of gene expression rather than DNA replication. Translation refers to the process of synthesizing proteins from mRNA and also does not pertain to DNA replication. While cell division encompasses the overall process that leads to the separation of replicated DNA into two new cells, it is not specifically responsible for the replication itself. Thus, the correct identification of DNA replication as the process that directly copies DNA uniquely highlights its role in preserving genetic information during cell division.

DNA replication is the cellular process responsible for copying the DNA before a cell divides, ensuring that each daughter cell receives an exact copy of the genetic material. This process occurs during the S phase of the cell cycle and is crucial for maintaining genetic consistency across generations of cells. During DNA replication, enzymes like DNA polymerase play key roles in unwinding the double helix and synthesizing new strands complementary to the original DNA template.

Transcription, on the other hand, involves synthesizing RNA from a DNA template and is a different part of gene expression rather than DNA replication. Translation refers to the process of synthesizing proteins from mRNA and also does not pertain to DNA replication. While cell division encompasses the overall process that leads to the separation of replicated DNA into two new cells, it is not specifically responsible for the replication itself. Thus, the correct identification of DNA replication as the process that directly copies DNA uniquely highlights its role in preserving genetic information during cell division.