Eucaryotes differ from procaryotes in DNA replication A: Different enz...
Differences in DNA Replication between Eucaryotes and Procaryotes:
- Different enzymes for leading and lagging strands: Eucaryotes use different enzymes for the leading and lagging strands during DNA replication, such as DNA polymerase ฮฑ, ฮด, and ฮต, whereas procaryotes primarily use DNA polymerase III for both strands.
- Use of DNA primer instead of RNA primer: Eucaryotes use DNA primase to synthesize an RNA primer that is later replaced by DNA, while procaryotes directly use an RNA primer synthesized by primase.
- Discontinuous rather than semidiscontinuous replication: Eucaryotes replicate their DNA discontinuously on the lagging strand, forming Okazaki fragments, while procaryotes exhibit semi-discontinuous replication where the leading strand is synthesized continuously, and the lagging strand is synthesized discontinuously.
- Unidirectional rather than bidirectional replication: Eucaryotes perform unidirectional replication at multiple origins of replication throughout their linear chromosomes, while procaryotes have bidirectional replication from a single origin of replication on their circular chromosomes.
These differences in DNA replication mechanisms between eucaryotes and procaryotes are crucial for understanding the complexity and efficiency of genetic processes in each type of organism.
Eucaryotes differ from procaryotes in DNA replication A: Different enz...
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