Question 5. In humans, there are 3 alleles for blood type: A, B, O. A and B are co-dominant over O. A male with O type blood mates with a female with AB type blood.
The largest stadium in Spain is the Santiago Bernabaue in Madrid, it is Real Madrids stadium.
The home of La Liga giants, Real Madrid, is the seventh largest football stadium in the world. Like the home of arch-rivals Barcelona, the Bernabeu is entirely club-owned, and is routinely packed with an 85,454 capacity crowd.