DNA Replication (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
When does DNA replication occur in a cell's life cycle?
When does DNA replication occur in a cell's life cycle?
Before cell division
What does semi-conservative replication mean?
What does semi-conservative replication mean?
One original & one new strand per DNA
How many original strands does each new DNA molecule contain after replication?
How many original strands does each new DNA molecule contain after replication?
One
Which component is NOT required for DNA replication?
Which component is NOT required for DNA replication?
RNA polymerase
What is the function of DNA helicase?
What is the function of DNA helicase?
Breaks H-bonds & unwinds double helix
What type of bonds does DNA helicase break?
What type of bonds does DNA helicase break?
Hydrogen bonds
Which base pairs with adenine during DNA replication?
Which base pairs with adenine during DNA replication?
Thymine
What does DNA polymerase do during replication?
What does DNA polymerase do during replication?
Joins nucleotides forming new strands
What type of bonds does DNA polymerase form between nucleotides?
What type of bonds does DNA polymerase form between nucleotides?
Phosphodiester bonds
What advantage does semi-conservative replication provide?
What advantage does semi-conservative replication provide?
Error reduction via template use