DNA Replication: The Watson and Crick Model (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does semi-conservative replication mean?
What does semi-conservative replication mean?
Each new DNA has 1 old & 1 new strand
During which phase of the cell cycle does DNA replication occur?
During which phase of the cell cycle does DNA replication occur?
Interphase
What is the main function of helicase during DNA replication?
What is the main function of helicase during DNA replication?
Unwinds helix & breaks H-bonds between bases
According to base pairing rules, which base pairs with guanine?
According to base pairing rules, which base pairs with guanine?
Cytosine
How is the leading strand synthesised during DNA replication?
How is the leading strand synthesised during DNA replication?
Continuously in one long chain
How long are Okazaki fragments?
How long are Okazaki fragments?
About 100-150 nucleotides
What is the function of ligase in DNA replication?
What is the function of ligase in DNA replication?
Joins Okazaki fragments together
What does primase do during DNA replication?
What does primase do during DNA replication?
Attaches an RNA primer to initiate synthesis
In which direction does DNA synthesis always occur?
In which direction does DNA synthesis always occur?
to direction
Approximately how many errors occur per base pair during DNA replication?
Approximately how many errors occur per base pair during DNA replication?
One in every ten billion