Exploring DNA Technology (VCE 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 are the three fundamental DNA manipulation techniques?
What are the three fundamental DNA manipulation techniques?
DNA extraction, PCR, gel electrophoresis
What is the primary purpose of DNA extraction?
What is the primary purpose of DNA extraction?
Isolating DNA molecules from cells
What role does salt solution play in DNA extraction?
What role does salt solution play in DNA extraction?
Neutralizes negative charges on DNA
What does alcohol do during DNA extraction?
What does alcohol do during DNA extraction?
Causes DNA to precipitate as white strands
What happens to target DNA during each PCR cycle?
What happens to target DNA during each PCR cycle?
Amount doubles
What temperature is used for the denaturing stage of PCR?
What temperature is used for the denaturing stage of PCR?
Why is Taq polymerase essential for PCR?
Why is Taq polymerase essential for PCR?
It can withstand high temperatures
What is the function of primers in PCR?
What is the function of primers in PCR?
Mark start and end of DNA region to copy
Why does DNA migrate toward the positive electrode in gel electrophoresis?
Why does DNA migrate toward the positive electrode in gel electrophoresis?
DNA is negatively charged
How does fragment size relate to migration distance in gel electrophoresis?
How does fragment size relate to migration distance in gel electrophoresis?
Smaller fragments travel further