1950 35 Suppl. i. 29 Reunions [ sc. of ends of the same chromosomes] of deletional type, i.e.,..those which leave deficiencies.
1987 J. H. Jandl xxxii. 1096/1 In general, deletional mutations cause severe hemophilia, and missense mutation leads to mild disease.
2009 185 625/1 Our deletional analysis has defined distinct regions of Yb that are responsible for its three different molecular functions.