Locating Genes (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What cuts large double-stranded RNA into siRNA?
What cuts large double-stranded RNA into siRNA?
Enzymes
What is the typical size range of siRNA fragments?
What is the typical size range of siRNA fragments?
20-25 nucleotides
What does RISC stand for in gene silencing?
What does RISC stand for in gene silencing?
RNA-induced silencing complex
What happens to target mRNA during RNA interference?
What happens to target mRNA during RNA interference?
It is degraded
In which organisms does the RNA-based approach for gene location work?
In which organisms does the RNA-based approach for gene location work?
Eukaryotes and some prokaryotes
By how much can PCR increase DNA concentrations?
By how much can PCR increase DNA concentrations?
Millions of times
How is double-stranded RNA produced for gene location?
How is double-stranded RNA produced for gene location?
In vitro transcription using PCR
How do scientists determine gene function using RNAi?
How do scientists determine gene function using RNAi?
By observing effects when genes are silenced
What advantage does combining PCR with RNA-based detection provide?
What advantage does combining PCR with RNA-based detection provide?
High sensitivity and specificity
Which factor requires RNA-based methods to target only intended genes?
Which factor requires RNA-based methods to target only intended genes?
Specificity