A plant will recognize a pathogenic invader
A) if it has many specific plant disease resistance (R) genes.
B) when the pathogen has an R gene complementary to the plant's antivirulence (Avr) gene.
C) only if the pathogen and the plant have the same R genes.
D) if it has the specific R gene that corresponds to the pathogen molecule encoded by an Avr gene.
E) when the pathogen secretes Avr protein.

Question

Quizplus · Accepted Answer

A plant will recognize a pathogenic invader if it has the specific R gene that corresponds to the pathogen molecule encoded by an Avr gene. This recognition triggers a defense response by the plant.

A Plant Will Recognize a Pathogenic Invader