Final answer:
Ligase is the enzyme that pieces together Okazaki fragments during DNA replication.
Step-by-step explanation:
The enzyme that pieces together Okazaki fragments is Ligase. Okazaki fragments are short segments of DNA that are synthesized discontinuously on the lagging strand during DNA replication. DNA ligase acts as a molecular glue, joining the Okazaki fragments by forming phosphodiester bonds between the nucleotides.
Learn more about Enzymes involved in DNA replication