Question

When two lines possessing two different alleles of resistance (say, DM1 and DM2) for a particular disease are crossed, the two alleles interact to induce disease resistance response in the hybrid without pathogen attack and produce necrotic lesions. Such a phenomenon is referred to as-

• A. Hypersensitive reaction
• B. Hyper-insensitive reaction
• C. Induced immune response
• D. Autoimmune response

Hint:

When different resistance alleles interact to trigger cell death and defense pathways without a pathogen present, it is a plant autoimmune response, often called hybrid necrosis.

Answer 1

The Correct Option is D