Some soybeans are susceptible to a disease called bacterial blight.A plant geneticist wants to genetically engineer a soybean that is resistant to this disease and needs to find a gene to splice into the plant.The scientist would most likely look for
A) a resistance (R)gene in the susceptible soybean.
B) a resistance (R)gene in an unsusceptible organism.
C) an avirulence (Avr)gene in the soybean.
D) an avirulence (Avr)gene in an unsusceptible organism.
E) an avirulence (Avr)gene in the bacterial pathogen.

Question

Quizplus · Accepted Answer

The scientist would most likely look for a resistance (R) gene in an unsusceptible organism, as this gene would confer resistance to the bacterial pathogen in the soybean. Finding an avirulence (Avr) gene in the bacterial pathogen or the soybean itself would not be useful for splicing into the soybean, as Avr genes do not confer resistance but rather trigger a defense response in the plant.

Some Soybeans Are Susceptible to a Disease Called Bacterial Blight