Chromosome Analysis of Abnormal Cells

Abstract

I REGRET to say there was an error in my recent communication “Chromosome Analysis of Abnormal Cells”¹. In Fig. 2 cell a is shown with only fifty-four chromosomes whereas cell b has fifty-five chromosomes. In preparing Fig. 2a one chromosome was unfortunately omitted although it was included in Fig. 3, the correct interpretation of the two cells. The chromosome in question is ringed on Fig. 1 here and would have been placed in group G of the Denver–London system.