Okazaki fragments are best described as:
A. short segments of DNA formed on the leading strand.
B. cause by the DNA Helicase building in the 3 to 5' direction.
C. short segments of replicated DNA formed on the lagging strand.
O
D. caused by the single strand binding proteins moving in away from the replication fork.

Question

15-08-2021
Biology

contestada

Okazaki fragments are best described as:
A. short segments of DNA formed on the leading strand.
B. cause by the DNA Helicase building in the 3 to 5' direction.
C. short segments of replicated DNA formed on the lagging strand.
O
D. caused by the single strand binding proteins moving in away from the replication fork.

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marianaegarciaperedo marianaegarciaperedo · Answer 1 · 2022-07-21T16:42:37+02:00

DNA replication occurs only in 5'-3'. Option C. Okazaki fragments are best described as short segments of replicated DNA formed on the lagging strand.

What is an Okazaki fragment?

During DNA replication, the molecule unwinds and the two strands get separated.

Different enzymes and proteins are involved in the replication fork formation, such as helicase (enzyme needed to break hydrogen bonds and separate the two original strands) and topoisomerase (enzyme that releases tension).

DNA polymerase makes the new nucleotides enter the fork and pairs them with the corresponding nucleotide of the original strand. Adenine pairs thymine, and cytosine pairs guanine.

Since DNA strands are antiparallel and replication occurs only in 5'-3' direction, one of the strands will replicate continuously, while the other strain will be replicated by short fragments known as Okazaki fragments.

Okazaki fragments are only formed on the lagging strand.

According to this framework, the correct option is C. short segments of replicated DNA formed on the lagging strand.

You can learn more about Okazaki fragments at

https://brainly.com/question/13049878

https://brainly.com/question/14271683

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