Contents

 In 4O clock plant in F1 generation gametes …… crossed
a) RY    
b) rr                      
c) yyyy 
d) RYry


b

The genotype ratio of F2 plants is……………
a) 1:2:1 
b) 1:2:2                 
c) 9:3:3:1
d) none


a

In co dominance different allele of a genes are ……..expressed in a heterozygous condition
a) intermediate                    
b) completely
c) incomplete                       
d) none of these


b

…….show the example of co- dominance between two alleles.
a) 4 O clock plant                               
b) Proteins
c) ABO blood groups        
d) none of these


c

Blood group ( ABO) present in humans and….
a) apes                                  
b) gorillas
c) chimpanzees                   
d) baboon
e) all of above

e

There are….……..allele for blood group trait.
a) one    
b) two                    
c) three 
d) seven

c