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.
La Almudena. Madridâs Cathedral is, of course, one of the most beautiful churches in the city. It is located right next to the Royal Palace, and was built during the 19th and 20th centuries. It is the only Spanish cathedral that has been consecrated by a Pope, it was blessed by John Paul II during his visit to Madrid in 1993.