DNA helicases are a necessary component of DNA replication. What is true of the DNA helicases?
a) They are involved in clamp loading to improve the processivity of polymerases
b) They hydrolyze ATP
c) They only move 5' to 3'
d) They form phosphodiester bonds to form a continuous strand of DNA after replication
e) They release links between parental DNA strands during replication to reduce overwinding and separate the two synthesized DNA strands (the latter if you are a bacteria)