Expodentially is the correct answer
        
             
        
        
        
Lets say that the genotypes are:
Male affected:XbY
Male unaffected: XaY
Female  affected: XbXb
Female carrier: XaXb
Female unaffected:XaXa
P: XbY  x  XaXa
F1: XaXb  XaXb  XaY  XaY The middle square is female carrier.
P:XbY  x  XaXb
F1: XaXb  XbXb  XaY  XbY The left square is affected female.
P:XaY  x  XbXb
F1: XaXb  XaXb  XbY  XbY The right square is affected male.
 
        
                    
             
        
        
        
The answer is A.They contain different genes
        
             
        
        
        
Answer:
Mendel was an Austrian monk whose researches laid the foundation of genetics. The experiments conducted by Mendel led him to the foundation of two laws which are named as the law of segregation and law of independent assortment.
According to the law of segregation, the two alleles of a gene segregate during the time of gamete formation and there are 50-50% chances of each of the alleles to be received by the gametes. Hence, there are 50% chances for Y gametes to be produced and 50% chances for y gametes to be produced.