BIOLOGY STUDENTS HELP ME ON THIS

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies