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CAIE IGCSE Biology 17.1.9 Most Body Cells in an Organism Contain Questions

Practise explaining how most body cells contain the same genes but make only the specific proteins needed for their specialised functions.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • state that most body cells contain the same genes
  • explain that only selected genes are expressed or switched on in a specialised cell
  • link expressed genes to production of the particular proteins needed for that cell's function

CAIE IGCSE Biology 17.1.9 Most Body Cells in an Organism Contain Questions question 1

[Maximum number: 3]

Fig. 6.1 shows some cells from the shoot tip of an onion, Allium cepa.

Fig. 6.1

Fig. 6.1

Some cells in shoot tips become leaf cells and others become cells in the stem or in flowers. Explain why it is important that only some of the genes in cell A are expressed in these cells.

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