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SingaporeBiologyQuick questions
Molecular Genetics
Quick questions on DNA structure and replication: H2 Biology Molecular Genetics
4short 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 is semi-conservative replication?Show answer
Replication is semi-conservative: each new molecule has one original strand and one new strand.
What is q1?Show answer
State the base that pairs with cytosine and the number of hydrogen bonds between them. [1 mark]
What is q2?Show answer
Explain the role of DNA ligase in replication. [1 mark]
What is q3?Show answer
A length of DNA has 600 base pairs and 360 of them are A-T pairs. Calculate the number of cytosine bases in this length. [2 marks]
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