What is true about the universality of DNA synthesis?

The statement that DNA synthesis occurs in all living organisms is accurate because DNA is the fundamental genetic material present in every known form of life, encompassing bacteria, archaea, and eukaryotic organisms. This universality is crucial for the replication and transmission of genetic information across generations.

DNA synthesis is an essential biological process that involves the replication of a cell’s genetic material, enabling not just cell division, but also the expression of genes that encode for proteins essential for cellular functions. This universality underscores the shared evolutionary heritage of all life forms, illustrating that despite the diversity of organisms, the mechanisms of DNA replication are largely conserved.

In contrast, the other options imply limitations on the occurrence of DNA synthesis. Eukaryotic organisms, bacteria, and viruses all perform DNA synthesis, making the suggestion that it is exclusive to eukaryotes, bacteria, or multicellular organisms inaccurate. The process is indeed fundamental to life in all its forms, highlighting the interconnectedness of biological systems.