A man with type A blood whose mother was type O is married to a woman with type AB blood. What are the blood types of their children and in what proportion?

Q: a pair of homologous chromosomesa) always has the same genes and the same allows b)always has the same genes c)always has the same alleles d)never has the same genes

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates