. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. FiG. 73.—Forms and hybrids of Paratettix. AA, texanus; BB, leucorotus; CC, Icuco- thorax; II, nigra nolalus. (After Nabours.) somes, and displays definite linkage values when tested with any other factor belonging in this chromosome. The factor for spot gives exactly the same values with all factors with which it has been tested. The factors for eosin and white eye color both give one unit of crossing over Digitized by Microsoft®. Please note that these images are extracted from scanned page images


. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. FiG. 73.—Forms and hybrids of Paratettix. AA, texanus; BB, leucorotus; CC, Icuco- thorax; II, nigra nolalus. (After Nabours.) somes, and displays definite linkage values when tested with any other factor belonging in this chromosome. The factor for spot gives exactly the same values with all factors with which it has been tested. The factors for eosin and white eye color both give one unit of crossing over Digitized by Microsoft®. 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 Babcock, E. B. (Ernest Brown), b. 1877; Clausen, Roy Elwood, 1891-. New York, McGraw-Hill; [etc. , etc. ]


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