Question

Tobacco contains a resistance gene that recognizes a specific avirulence gene in tobacco mosaic virus (TMV) and mobilizes the plant’s defenses against it. This is an example of

general immunity.

gene-for-gene resistance.

a hypersensitive response.

systemic acquired resistance.

a pathogen associated molecular pattern.

Answer 1

The answer is-

This is a example of gene-for-gene resistance.

Explanation:-

- Here tobacco plants contains the resistance gene . And the tobacco mosaic virus contains the avirulence gene.

- Plants producing a specific Resistance (R) gene product are resistant towards a pathogen that produces that corresponding avirulence gene product. Gene-for-gene relationship are a widespread and very important aspect of plant disease resistance.

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