Concept explainers
What is the basis for tlie difference in how the leading and lagging strands of DNA molecules are synthesized?
(A) The origins of replication occur only at the 5' end.
(B) Helicases and single-strand binding proteins work at the 5' end.
(C) DNA|Polymerase can join new
(D) DNA ligase works only in the 3' →5' direction.
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