Answer:
50%
Explanation:
The pink flower donates the r allele and produces pink flowers in 50% of the offspring.
 
        
                    
             
        
        
        
The word you're looking for is the Bowen's reaction.
Hope it helped!
        
             
        
        
        
The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
        
             
        
        
        
If you are talking about a chemical solution..Yes!
There are many colors a solution can end up being.