You are out working in your garden, and you notice that one of your favourite flowering plants has black, dead spots on the leaves. You immediately suspect that the plant has been invaded by a pathogen and has initiated a(n) ________.
A) avirulence response
B) hypersensitive response
C) resistance response
D) virulence response

Question

Quizplus · Accepted Answer

Black, dead spots on the leaves indicate that the plant has been invaded by a pathogen and has initiated a hypersensitive response. The hypersensitive response is a programmed cell death response that occurs in plants in response to an incompatible pathogen.

You Are Out Working in Your Garden, and You Notice