Producing DNA Fragments (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 is recombinant DNA?
What is recombinant DNA?
DNA combining material from two organisms
Why can genes be successfully transferred between different organisms?
Why can genes be successfully transferred between different organisms?
The genetic code is universal
Which problem is associated with extracting proteins from human or animal donors?
Which problem is associated with extracting proteins from human or animal donors?
Risk of immune system rejection
Where is the enzyme reverse transcriptase naturally found?
Where is the enzyme reverse transcriptase naturally found?
In retroviruses such as HIV
What is a key advantage of cDNA produced by reverse transcriptase?
What is a key advantage of cDNA produced by reverse transcriptase?
It contains only the coding sequence
What is the natural function of restriction endonucleases in bacteria?
What is the natural function of restriction endonucleases in bacteria?
To cut up viral DNA as defence
What characteristic do recognition sequences for restriction endonucleases have?
What characteristic do recognition sequences for restriction endonucleases have?
They are palindromic
What is the advantage of sticky ends produced by some restriction endonucleases?
What is the advantage of sticky ends produced by some restriction endonucleases?
They easily bind to DNA cut by same enzyme
What are oligonucleotides in the gene machine process?
What are oligonucleotides in the gene machine process?
Small overlapping single DNA strands
How quickly can the gene machine produce artificial genes?
How quickly can the gene machine produce artificial genes?
As little as 10 days