Blood groups are named because of the agglutinogens $A$ and $B$ present in:

The role of the spleen in mammals is $......$.

What is the importance of plasma proteins?

At what temperature is blood stored in bottles (in $^{\circ}C$)?

Explain the process of coagulation of blood.

After examining the blood groups of a husband and wife,the doctor advised them not to have more than one child. The blood groups of the couple are likely to be: