Biology · Plant Biotechnology
Consider a linear metabolic pathway leading to the production of a lignin precursor: Intermediate 1 → Intermediate 2 → Intermediate 3 → Lignin. Enzyme X catalyzes the first step, Enzyme Y catalyzes the branch-off consumption of Intermediate 2 into a secondary metabolic sink, and Enzyme Z catalyzes the final step towards lignin and is regulated by feedback inhibition. Which one of the following strategies will lead to the generation of plants with the highest level of lignin?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Overexpression of gene expressing enzyme X and knockout of gene expressing enzyme Y.✓
- 2Overexpression of the genes expressing enzymes X and Z.
- 3Knockout of the gene expressing enzyme Y.
- 4Overexpression of the genes expressing enzyme X.
Correct answer
Overexpression of gene expressing enzyme X and knockout of gene expressing enzyme Y.
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