Licence: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Credit: Blood groups in man / by R.R. Race and Ruth Sanger. Source: Wellcome Collection.
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![TABLE 86 The Expected Distribution of the Kidd Groups in English Parents and Offspring Genotypes MATINGS Type Frequency Jk a Jk a CHILDREN jk a jk b jk b jk b Jk']k a x Jk a Jk a jk a ]k a x Jk a Jk b Jk a Jk b x Jk a Jk b 0-0616 0-2482 0-2500 0-o6l6 0-1241 0-0625 0 -I 24 I 0 -I 250 0-0625 jk a jk a x Jk b Jk b JkJk h X Jk b Jk b 0-1250 0-2518 — 0 -I 250 0-1259 0-1259 Jk b Jk b x Jk b Jk b 0-0634 — — 0-0Ö34 I -oooo Phenotypes MATINGS PROPORTION OF CHILDREN FROM EACH MATING Type Frequency Jk(a+) Jk(a-) Jk(a+) x Jk(a+) 0-5598 0-8884 0 -III 6 fk(a+) x Jk(a-) 0-3768 0-6659 0-3341 Jk(a-) xjk(a-) 0-0634 — I -oooo i -oooo TABLE 87 The Kidd Groups of 117 English Families and their 255 Children MATINGS CHILDREN Type Number obs. exp. Total Jk(a+) obs. exp. JK obs. 3 ~) exp. Jk(a+) x Jk(a+) 66 65-50 152 134 135-04 18 16-96 Jk{a+) x Jk{a~) 39 44-09 78 51 51-94 27 26-06 Jk{a-) xjk(a~) 12 7-42 25 I — 24 25-00 117 255 Sources Race, Sanger, Allen, Diamond and Niedziela, 2 1951: 51 families with 124 children. Race, Sanger and Thompson, 8 1953: 66 families with 131 children. R](https://iiif.wellcomecollection.org/image/b18026631_0283.JP2/full/800%2C/0/default.jpg)
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