Genetic Engineering (OCR A-Level Biology A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why can genes from one species produce the same protein when transferred to another species?
Why can genes from one species produce the same protein when transferred to another species?
The genetic code is universal
What is a key feature of the DNA sequences recognised by restriction enzymes?
What is a key feature of the DNA sequences recognised by restriction enzymes?
They are palindromic
What advantage do sticky ends provide in genetic engineering?
What advantage do sticky ends provide in genetic engineering?
Allow complementary base pairing
Why is cDNA particularly useful for inserting genes into bacteria?
Why is cDNA particularly useful for inserting genes into bacteria?
It contains only exons and no introns
What is the function of ligase enzyme in genetic engineering?
What is the function of ligase enzyme in genetic engineering?
Forms phosphodiester bonds in DNA backbone
What is the main purpose of marker genes in genetic engineering?
What is the main purpose of marker genes in genetic engineering?
To identify successfully transformed cells
How does Bt toxin kill insect pests in GM crops?
How does Bt toxin kill insect pests in GM crops?
Binds gut receptors & forms pores in cells
What does the term 'pharming' refer to in genetic engineering?
What does the term 'pharming' refer to in genetic engineering?
Using livestock to produce pharmaceuticals
What is the key difference between somatic and germ-line gene therapy?
What is the key difference between somatic and germ-line gene therapy?
Somatic changes aren't inherited
What advantage does CRISPR-Cas9 have over earlier genetic engineering methods?
What advantage does CRISPR-Cas9 have over earlier genetic engineering methods?
Targets specific genome locations precisely