Multiple Choice
Refer to the figure. 
Which statement best describes the role of extensin in this signal transduction pathway?
A) It is an elicitor.
B) It strengthens the cell wall and blocks plasmodesmata.
C) It is a constitutive defense.
D) It attacks the pathogen directly.
E) It serves as an alarm signal to cells that have not yet been attacked.
Correct Answer:
Verified
Correct Answer:
Verified
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