My freind the correct anwer is the 18th amendment
        
                    
             
        
        
        
Hey mate!
You stuck?
Humans use selective breeding to pass desired TRAITS on to the next generation of organisms. 
Hope this helped!
        
             
        
        
        
Answer:
50
Explanation:
A punnet square can be described as a diagram which illustrates all the possible outcomes of a cross. It is used to tell about the percentage chances for the kinds of genes being transferred to offsprings.
In order to check the percentage of red flowers we can draw a punnet square. As red flower is a recessive trait and pink flower a heterozygous trait,the punnet square shows that a cross between them will give 50 percent red flowers and 50 percent pink flowers.
 
        
             
        
        
        
genotypes is 1:2:1 & phenotypes is 3:1 
l hope this helps you