Slide showing 'Table 7. - Tests of translocations for viability in homozygous condition'. Slide shows 'Table 7. - Tests of translocations for viability in homozygous condition'. Top row headings: 'Types', 'Number tested for viability as homozygote', 'Number viable', 'Percentage viable', 'Number fertile', 'Percentage fertile' and 'Undetermined fertility'. Left column headings: 'TA1-2', 'TA1-3', 'TA1-4', 'TA2-4', 'TA3-4', and 'TA2-3'. Table created by Patterson, Sone, Bedichek, and Suche, 142. Late 19th to early 20th century