Question

Write the three uses of genetic engineering in crop improvement ? 3mark

Answer 1

Plants have been modified for insect protection, herbicide resistance, virus resistance, enhanced nutrition, tolerance to environmental pressures and the production of edible vaccines. Most commercialised GMOs are insect resistant or herbicide tolerant crop plants.

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Answer 2

Answer:

Crop improvement refers to the genetic alteration of plants to satisfy human needs. In prehistory, human forebears in various parts of the world brought into cultivation a few hundred species from the hundreds of thousands available. Methods used for crop improvement:

Plant Introduction

Selection

Hybridization

Mutation Breeding

Polyploidy