Why is the lagging strand synthesised in Okazaki fragments? Group of answer choicesBecause it is synthesised towards the replication forkBecause DNA polymerase III can only synthesise short fragmentsBecause it is synthesised by DNA polymerase I, which can only do short regions Because it is synthesised away from the replication fork
Question
Why is the lagging strand synthesised in Okazaki fragments? Group of answer choicesBecause it is synthesised towards the replication forkBecause DNA polymerase III can only synthesise short fragmentsBecause it is synthesised by DNA polymerase I, which can only do short regions Because it is synthesised away from the replication fork
Solution
The lagging strand is synthesized in Okazaki fragments because it is synthesized away from the replication fork. DNA replication is a process that occurs in a 5' to 3' direction. This means that the new DNA strand is synthesized from the 5' end to the 3' end.
On the leading strand, this process is straightforward because the replication fork is moving in the same direction as the synthesis of the new DNA strand. However, on the lagging strand, the replication fork is moving in the opposite direction to the synthesis of the new DNA strand.
Because DNA polymerase can only add nucleotides to the 3' end of the new strand, and because the replication fork is moving in the opposite direction, the lagging strand must be synthesized in short, discontinuous fragments known as Okazaki fragments. These fragments are later joined together by the enzyme DNA ligase to form a continuous DNA strand.
Similar Questions
Okazaki fragments are the result of DNA polymerisation ofGroup of answer choicesthe lagging strand towards the replication fork the lagging strand away from the replication fork the leading strand towards the replication fork the leading strand away from the replication fork
The lagging strand of DNA is replicated in a discontinuous manner. In this process, Okasaki fragments:
The strand that produces Okazaki fragments.Group of answer choiceslagging strandleading strandboth leading and lagging strandNext
In DNA replication, continuously synthesis occurs on the leading strandMultiple choice question.without RNA primers.toward the origin of replication.in the 5' to 3' direction.and creates Okazaki fragments.
The lagging strand of DNA is replicated in a discontinuous manner. In this process, Okasaki fragments:Group of answer choicesare synthesized in the 5'→3' direction, and each one has its own RNA primer.are synthesized in the 3'→5' direction, and each one has its own RNA primer.are synthesized in the 5'→3' direction, and each one has its own DNA primer.are synthesized in the 3'→5' direction, and each one has its own DNA primer.
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