Final answer:
DNA replication is an energy-intensive process with a high degree of accuracy due to the proteins and enzymes involved, including DNA polymerases with proofreading functions and multiple repair mechanisms. Prokaryotic cells, like E. coli, replicate their genomes from a single point of origin and have a simpler replication process compared to eukaryotic cells, which require multiple origins of replication to handle larger genomes while maintaining genome integrity.Hence, the correct answer is option A that is true.
Step-by-step explanation:
The process of DNA replication is indeed energy-intensive and is carried out with high fidelity due to the precision of the enzymes involved. Errors during replication are rare because of the proofreading function of DNA polymerases which remove incorrectly paired nucleotides. Additionally, other repair mechanisms correct any mistakes that manage to escape the initial proofreading. DNA replication in prokaryotes, such as E. coli, is characterized by a single origin of replication and a bidirectional process, which swiftly replicates the entire genome. In contrast, eukaryotic cells utilize multiple origins of replication to manage their larger genomes effectively.
Eukaryotic DNA replication involves more polymerases than prokaryotic replication due to the complexity and size of the eukaryotic genomes. This difference necessitates a more intricate replication machinery to ensure genome integrity during cell division. Despite the rapid rate of replication in both prokaryotes and eukaryotes, the process remains highly accurate, ensuring genetic stability across generations.