The table shows data from a commercial tissue culture laboratory producing potato plants.

Week | Number of plants
1 | 50
2 | 400
3 | 3200
4 | 25600

Which process best explains the rapid increase in plant numbers?

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Question

The table shows data from a commercial tissue culture laboratory producing potato plants.

Week | Number of plants
1 | 50
2 | 400
3 | 3200
4 | 25600

Which process best explains the rapid increase in plant numbers?

Accepted Answer

Mitosis in the callus cells producing genetically identical clones — Award 1 mark for recognising that mitosis in tissue culture produces identical cells that develop into clones, explaining the exponential growth pattern. A is incorrect because meiosis produces gametes, not new plants, and would produce variation. C is incorrect because tissue culture is asexual, not sexual reproduction. D is incorrect because fertilisation requires gametes and produces genetic variation.

Answer

Fertilisation occurring between different tissue samples

Answer

Mitosis in the callus cells producing genetically identical clones

Answer

Sexual reproduction producing seeds that germinate rapidly

Answer

Meiosis in the root cells producing haploid plantlets

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