| Collection | GB 0231 University of Aberdeen, Special Collections |
| Level | Item |
| Ref No | UNIVERSITY 1437/2/5/28 |
| Title | Slide showing diagram concerning hens and cockerels showing the 'Interaction of factors for comb form.' |
| Date | Late 19th to early 20th century |
| Extent | 1 slide |
| Description | Slide shows diagram concerning hens and cockerels showing the 'Interaction of factors for comb form.'
The symbol P1 first appears on the slide, followed by a picture of a rosecomb and peacomb bird, below this the symbol F1 appears with a picture of a walnut-comb bird, below this is F2 which is the checkerboard for the interaction of factors for comb form.'
Title below diagram reads: 'Fig. 35 - Interaction of factors for comb form [on] fowls. The cross of a pure rosecomb-bird with a pure pea-comb one gives all walnut-combed offspring. The 16 possible combinations of the F1 gamets, with their genotypes and the phenotypes resulting from factor interaction are shown in the F2 checkerboard.'
In the upper left corner of front pane there is a label titled 'Makers Newton and Co, 43 Mueum Street, London WC1.' |
| Access Status | Open |
| Access Conditions | The records are available subject to the signed acceptance of the Department's access conditions. |
| Physical Description | tape peeling |
| Related Material | MSU 1437/2/5/40 |