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Atrazine is a herbicide and it acts on _________

(a) reaction centre in photosystemI

(b) reaction centre in photosytemII

(c) reaction centre in both the photosystems

(d) neither of the photosystems

The question was asked in final exam.

Enquiry is from Organelle Transformation topic in chapter Using Other Organisms of Genetic Engineering

1 Answer

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Best answer
The correct answer is (b) reaction centre in photosytemII

Easiest explanation: Atrazine is a herbicide and it acts on a reaction centre present in photosystem II. This herbicide is a product of chloroplast psbA gene.

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