A botanist is studying the effects of different oomycete species on potato plants. She exposes one set of plants to an oomycete species having several avirulence (AVR) proteins. She exposes another set of plants to an oomycete species having a single AVR protein. What do you expect will be the results of her experiment? Mortality will be higher in plants exposed to the oomycete species having several AVR proteins. Mortality rates will be the same in both plant sets. Mortality will be higher in plants exposed to the oomycete species having a single AVR protein.

Mortality will be higher in plants exposed to the oomycete species having several AVR proteins.

Explanation:

The higher the virulence of a viral cell. the higher the number of organisms that that will be infected due to the virulence effect of the virus, and thus the higher the rate of mortality from the death due to the infection.Thus Virulence is directly proportional to mortality of the host due to infection induced by its effects.

Therefore higher virulence oomycete (AVR) protein will cause more mortality compare to  lower  virulence oomycete AVR protein, because it cause several  infections in the host than  the single  cell AVR protein. Besides,despite both protein of the same species; it  shows that it  is  the amount  of virulence that determine the rate of mortality.