Body parts of unrelated organisms that serve the same function are examples of convergent evolution. 
<span>Convergent evolution is the phenomenon when the different species independently create similar features. Those features can be structures that have similar form or function. This happens because organisms have been adapted to similar environments or ecological niches.</span>
        
             
        
        
        
domain bacteria; kingdom eubacteria
 
        
                    
             
        
        
        
It is 0%. They only have the recessive alleles (ss) so there is no possibility it can ever produce a gamete with a dominant allele (S). For example, if it was Ss it would be 50%, and for SS it would be 100%.