The $ABO$ blood group is controlled by:

Fill in the missing terms in the following statement: $ABO$ blood grouping explains codominance through ....... and dominance through .........

$ABO$ blood group is a good example of:

Can a child have blood group '$O$' if his parents have blood group '$A$' and '$B$'? Explain.

If the father has $AB$ blood group and mother has $A$ blood group,then the children born to them will have the following blood groups $EXCEPT$ . . . . . . .

How many of the following genotypes possibly represent normal wings in Drosophila?
$(i)$ $Vg^{+} Vg^{+}$
(ii) $Vg^{+} vg^{ni}$
(iii) $Vg^{+} vg^{no}$
(iv) $Vg^{+} vg^{st}$
$(v)$ $Vg^{+} vg$