Question

128. During DNA replication, Okazaki fragments are usedto enlongate
(1) The leading strand towards replication fork
(2) The lagging strand towards replication fork
(3) The leading strand away from replication fork
(4) The lagging strand away from the replication fork

Answer 1

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ANSWER

ANSWERThe process in which the DNA is replicated and two copies are synthesized is called DNA replication. It involves the formation of replication fork. The two strands of the DNA helix separate and the new strands are formed on the original strands, known as the template strands. The strand which is synthesized in 3'-5' direction is the leading strand and the strand which is synthesized in the opposite direction is the lagging strand which contains the Okazaki fragments. This strand is synthesized away from the replication fork. Thus, the correct answer is option A.

Answer 2

Answer:

2

Explanation: