A scientist is carrying out replication of DNA artificially in her laboratory. What will she use to join the gaps on the DNA strand?

A. the enzyme DNA polymerase
B. the enzyme DNA ligase
C. an artificial adhesive compound

B. the enzyme DNA ligase

B. the enzyme DNA ligase

DNA ligase is the enzyme used to join the gaps on the DNA strand during the replication process. It catalyzes the formation of phosphodiester bond between adjacent nucleotides, sealing the gaps and creating a continuous DNA strand.