Slide showing three sets of diagrams concerned with genetics and diversity of results. Slide shows three sets of diagrams concerned with genetics and diversity of results. The top two cells demonstrate the characteristics 'yellow round' and 'green wrinkled'; the diagram proceeds into the second part showing the segregation of 'gametes' and their fertilisation in level F1. F2 is a square showing the diversity of results of the crossing of the male and female 'gametes' which are as follows: '9 yellow round, 3 yellow wrinkled, 3 green round, 1 green wrinkled.' Title below image reads: 'Fig. 82 - Independent assortment of two pairs of factors'. Late 19th to early 20th century