Question

select the correct answer.
why do you think the eukaryotic dna requires multiple origins of replication?
a. multiple origins help make more copies of the same dna simultaneously.
b. eukaryotic organisms have unique dna strands for each specialized cell.
c. eukaryotes do not have topoisomerase, so multiple origins are created due to tension from unwinding of dna strands.
d. eukaryotic dna is much larger and replication at multiple origins helps reduce the time required for whole genomes to replicate.
e. multiple origins of replication ensure that there are no lagging strands and replication takes place at the same pace.

Explanation:

Eukaryotic DNA is much larger than prokaryotic DNA. Having multiple origins of replication allows the whole genome to replicate in a reasonable amount of time. If there was only one origin, it would take too long for the large eukaryotic genome to replicate.

Answer:

D. Eukaryotic DNA is much larger and replication at multiple origins helps reduce the time required for whole genomes to replicate.