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CAIE IGCSE Biology 21.1.2 Plasmids & Ethical Advantages of Bacteria

Practise discussing plasmids and the limited ethical concerns that make bacteria useful in genetic modification.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • identify plasmids as transferable circles of bacterial DNA used to carry inserted genes
  • state that manipulating and growing bacteria raises few ethical or welfare concerns
  • avoid attributing usefulness to a nucleus, mitochondria or a different genetic code

21.1.2—Discuss why bacteria are useful question 1

[Maximum number: 1]

The diagram shows a bacterial cell.

Which cell structure makes bacteria useful in genetic modification?

Figure for Question 21.1.2—Discuss why bacteria are useful question 1 — CAIE IGCSE Biology

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