I wasn't a particularly brilliant student, but on the other hand, I was very active in Student Union affairs and in student politics.
As we returned to Argentina, I started seriously to work towards a doctoral degree under the direction of Professor Stoppani, the Professor of Biochemistry at the Medical School.
Back in 1962, when I had by accident become the supervisor of Roberto Celis in Argentina, it occurred to me that antibody diversity might arise from the joining by disulphide bridges of a variety of small polypeptides in combinatorial patterns.
My father was a Jewish immigrant who settled in Argentina and was left to his own devices at the age of 15. My mother was a teacher, herself the daughter of a poor immigrant family.
My thesis was on kinetics studies with the enzyme aldehyde dehydrogenase. When that was finished, I was granted a British Council Fellowship to work under the supervision of Malcolm Dixon.