Answer: No, Larry cannot be the father if he has type B blood.
Step-by-step explanation:
Blood type inheritance is determined by the genes that are passed from the parents to the offspring. Blood type is determined by two genes, A and B, which code for the presence of A and B antigens on the surface of red blood cells. Blood type O does not have either antigen, while type AB has both.
In this case, Baby Vincent has type A blood, which means he has the A antigen on his red blood cells. His mother has type O blood, which means she does not have either the A or B antigens on her red blood cells.
If Larry is the father, he must have at least one gene for the A antigen, as he would have passed it on to Baby Vincent. However, if Larry has type B blood, he does not have the A antigen and cannot be the father of Baby Vincent.
To prove this result, we can use a simple Punnett square, which is a tool for predicting the possible outcomes of a genetic cross. The Punnett square for this scenario would show that all of the offspring from a cross between a type O mother and a type B father would have type B blood, and none would have type A blood. This means that if Larry has type B blood, he cannot be the father of Baby Vincent, who has type A blood.