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WABiologyQuick questions
Unit 3: Continuity of Species
Quick questions on DNA replication: WACE Year 12 Biology
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the roles of the enzymes?Show answer
Replication is carried out by a team of enzymes working at a replication fork, the Y-shaped region where the strands separate.
What is linking replication to continuity of species?Show answer
Replication is the molecular basis of continuity. Each time a cell divides, semiconservative copying ensures both daughter cells receive an identical, complete genome. In meiosis, replication before division means that after the chromosomes are separated each gamete still receives one full copy of every gene. Faithful replication therefore underpins the stable inheritance of traits across generations, while the rare errors that escape proofreading provide one source of the variation that evolution acts on.
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