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Montano1993 [528]
3 years ago
5

When a DNA molecule is described as replicating bidirectionally, that means that it has two:

Biology
2 answers:
Neporo4naja [7]3 years ago
8 0

Answer:

D) Replication forks.

Explanation:

When the DNA is replicating bidirectionally, that means the DNA is replicating in two directions from the starting point at the same time resulting in the formation of two strands i-e leading and lagging.

Leading strands undergoes rapid replication while the lagging strand undergoes slow replication and forms okazaki fragments.

As DNA is replicating in two directions from the starting point, two replication forks (area where DNA replication occurs actively) are formed both  moving in opposite direction.

Hence option D) Replication froks is the right answer.

Sergio039 [100]3 years ago
3 0

Answer:D

Explanation:

As DNA helicase unwinds the DNA using ATP, the relief of supercoil needs topo-isomerase. Helicases move on both directions, separating the strand in advance of the replication. This forms a replication bubble with two replication forks.

Each replication fork contains DNA helicase which unwinds a short region of DNA helix.

The replication fork looks like a fork in the road that is composed of a leading strand and a lagging strand of DNA.

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