Describe if the following homozygous mutant plants will undergothe triple response in the presence and absence of ethylene.Briefly explain your answer.
A. A recessive mutation (loss-of-function) in the EIN3gene. This recessive mutation results in EIN3 being unable toactivate the expression of ethylene inducible genes.
B. A recessive mutation (loss-of-function) in one ethylenereceptor gene (ETR1). This recessive mutation resulted inan ETR1 protein that is unable to activate CTR1.
C. A dominant mutation (gain-of-function) in one ethylenereceptor gene (ETR1). This dominant mutation results in anETR1 protein that is unable to bind ethylene.
D. A dominant mutation (gain-of-function) in EIN2. This dominantmutation results in an EIN2 protein that cannot be phosphorylatedby CTR1.
