<Li> moderate - to - severe allergic asthma </Li> <Tr> <Th> gemtuzumab </Th> <Td> <Ul> <Li> relapsed acute myeloid leukemia </Li> </Ul> </Td> <Td> targets myeloid cell surface antigen CD33 on leukemia cells </Td> <Td> humanized </Td> </Tr> <Ul> <Li> relapsed acute myeloid leukemia </Li> </Ul> <Li> relapsed acute myeloid leukemia </Li>

Which of the following statements about monoclonal antibody production is true