The scientific document you have studied is adapted from articles in New Scientist and the Journal of Consumer Protection and Food Safety. Use the information from the scientific document and your own knowledge to answer the following questions. Explain why the frequency of the BtPMaT1 gene increases in the whitefly population (paragraphs 3 and 6). (4) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

Biology
IGCSE&ALevel
EDEXCEL
Exam No:wbi15-01-que-20240608 Year:2024 Question No:8(b)

Answer:

An explanation that includes four of the following points:
- \{BtPMaT1 / the gene\} allows whitefly to avoid being poisoned (when it eats the plant) (1)
- accept having this gene gives them a (selective) advantage(1)
- (only) whitefly with the \{BtPMaT1 / gene\} will survive (1)
- to (reproduce) and pass \{BtPMaT1 /gene / advantageous allele\} to offspring (1)
- (as a result) these whitefly have no competition for this food source (from other insects) (1)

Knowledge points:

CH8 – Coordination, Response and Gene Technology

Solution:

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