Which of the following statements is true?
A) during DNA replication the leading strand serves as a template for replication of the lagging strand
B) fragments on the lagging strand are joined together by ligase
C) a bacterial chromosome is made up of individual units called Okazaki fragments
D) two strands of a double helix combine by base pairing in a parallel fashion

Question

Quizplus · Accepted Answer

During DNA replication, short fragments on the lagging strand are synthesized in the opposite direction of the replication fork and are eventually joined together by ligase to form a continuous strand. The leading strand is synthesized continuously in the same direction as the replication fork and serves as a template for replication of the lagging strand. Bacterial chromosomes consist of a single circular DNA molecule and are not composed of individual units. Two strands of a double helix combine by base pairing in an antiparallel fashion, not parallel.

Which of the Following Statements Is True