In those days, and almost still today - it was very difficult to work out exactly what bit of the penicillin molecule people are allergic to. We just said this was an allergic reaction to penicillin and you mustn’t have any more penicillin because, instead of being beneficial, it could ...
the presence of these highly expressed genes within potential multigene families may be explained by previous studies inD. melanogaster, where it has been shown that genes demonstrating a male-biased pattern of expression