Final answer:
During DNA replication, helices of DNA polymerase rotate 60 degrees to recruit incoming dNTPs.
Step-by-step explanation:
The helices of DNA polymerase that rotate 60 degrees to recruit the incoming dNTP are part of the DNA replication process. During DNA replication, the leading strand is synthesized continuously by DNA polymerase III in the 5' to 3' direction, while the lagging strand is synthesized in short fragments called Okazaki fragments. DNA polymerase III moves along the helix, unwinding the DNA ahead and rewinding it behind, to recruit incoming dNTPs and add them to the growing DNA chain.