. Animal biology. Biology; Zoology; Physiology. f,. Fig. 186. — Diagram to illustrate the results from crossing white and red flowered races of Four-o'clocks, Mirabilis jalapa. The somatic condition (phenotype) is shown graphically; the small circles represent the genes which are involved. the expected ratio of 1 red : 2 roan : 1 white which is clear evidence of segregation. Another example is the well-known blue Andalusian fowl. This will not breed true — it is a hybrid in which the charac- ters of both parents are exhibited, apparently not blending though giving a somewhat intermediate effec
. Animal biology. Biology; Zoology; Physiology. f,. Fig. 186. — Diagram to illustrate the results from crossing white and red flowered races of Four-o'clocks, Mirabilis jalapa. The somatic condition (phenotype) is shown graphically; the small circles represent the genes which are involved. the expected ratio of 1 red : 2 roan : 1 white which is clear evidence of segregation. Another example is the well-known blue Andalusian fowl. This will not breed true — it is a hybrid in which the charac- ters of both parents are exhibited, apparently not blending though giving a somewhat intermediate effect. Its offspring show the ratio of 1 black : 2 blue Andalusian : 1 white-splashed-with-blue. In order to obtain all blue Andalusians — the type recognized by poultrymen — it is necessary to mate black with white-splashed-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company
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