Question

How many types of blood groups are there in human beings? Give an example of inheritance of blood groups in human?

Answer 1

There are four types of blood groups A,B,O and O. Where A and B are Dominant and O is a recessive gene.So when there is genes A +O=AO this is blood group A as A is dominant and O is recessive.
                                  genes  B +O=BO this is blood group B as B is dominant and O is recessive.
                                  genes A +B=AB this blood group AB as here both are dominant genes
                                  genes  O +O=OO this is blood group O as both are recessive and so they can be                                                                              expressed.

Answer 2

By the changing of the sugar levels in the blood group then the blood will inherited...