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单词 lagging strand
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Examples oflagging strand

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However, there is a problem going in the other direction on thelaggingstrand.
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Because of its orientation, replication of thelaggingstrandis more complicated than that of the leading strand.
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Consider the following: the helicase continuously unwinds the parental duplex, but thelaggingstrandmust be polymerised in the opposite direction.
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Primase also acts as a halting mechanism to prevent the leading strand from outpacing thelaggingstrand by halting the progression of the replication fork.
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On the leading strand this route is continuous, but on thelaggingstrandit is discontinuous.
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Thelaggingstrandis synthesized in short, separated segments.
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When this is complete, a single nick on the leading strand and several nicks on thelaggingstrandcan be found.
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Electron microscopy studies indicate that nucleosome loading on thelaggingstrandoccurs very close to the site of synthesis.
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Since replication occurs in opposite directions at opposite ends of parent chromosomes, each strand is alaggingstrandat one end.
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The priming event on thelaggingstrandestablishes a replication fork.
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At this point, thelaggingstrandreplicative polymerase associates with the clamp and primer in order to start polymerisation.
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There is a richness of guanine over cytosine and thymine over adenine in the leading strand and vice versa for thelaggingstrand.
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Duringlaggingstrandsynthesis, the replicative polymerase sends thelaggingstrandback toward the replication fork.
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Furthermore, the time used for replication between the two strands varies and may lead to asymmetric mutational pressure between leading andlaggingstrand.
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This makes the speed oflaggingstrandsynthesis much lower than that of the leading strand.
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This means that, while polymerisation of the leading strand proceeds, polymerisation of the laggingstrandonly occurs after enough of thelaggingstrandhas been unwound by the helicase.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2025/9/28 0:41:56