Which of the following statements best explains why the leading and lagging strands are synthesized using two different mechanisms?

Answer 1

The leading strand is created continuously, but the lagging strand is created as small fragments, known as Okazaki fragments. These fragments are later joined together to form one complete strand.

Answer 2

The Leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction. Also the Leading strand is synthesized continuously, whereas the lagging strand is synthesized in short fragments that are ultimately stitched together (okazaki fragments.)

Answer 3

The two strands of Double stranded DNA are in a Three-prime to Five-prime end-over-end head-to toe configuration. DNA may be synthesised in only the 5' to 3' direction - this is the Leading Strand; synthesis of the 'oppositely configured' Lagging strand occurs using 'Okazaki fragments'.

Answer 4

In the figure, the DNA of the chromosome is being replicated from right to left. Because the "old" DNA of the parental template consists of antiparallel strands, the new DNA is polymerized in two different directions.

Answer 5

The leading and lagging strands are synthesized using different mechanisms because DNA replication occurs in a 5' to 3' direction, but the two strands of DNA are antiparallel. This means that one strand is oriented in the 3' to 5' direction (leading) and the other in the 5' to 3' direction (lagging), requiring discontinuous replication on the lagging strand.

Answer 6

DNA polymerase can join new nucleotides only to the 3' end of a growing strand

Answer 7

The leading strand is synthesized continuously in the 5→3 direction, while the lagging strand is synthesized discontinuously in the 53 direction.

Answer 8

The leading strand is synthesized in one long continuous chain, end to end. The lagging strand is synthesized in pieces and then spliced together.

Answer 9

Direction.