. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. 59.—Club-wingcd Drosophila, At a characteristic unfolded wing pads. At c the absence of spines on the side of the thorax is shown in comparison with the normal con- ditions, 6. 'From Morgan.). Fig. 60. Mutant type of Drosophila ampclophila called abnormal abdomen (the wings have been cut off); a, female; b, male; c, female that approaches the normal type. Development of this character is dependent upon moisture. (From Morijan.) been found to depend upon the condition of the food. When the food
. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. Fig. 59.—Club-wingcd Drosophila, At a characteristic unfolded wing pads. At c the absence of spines on the side of the thorax is shown in comparison with the normal con- ditions, 6. 'From Morgan.). Fig. 60. Mutant type of Drosophila ampclophila called abnormal abdomen (the wings have been cut off); a, female; b, male; c, female that approaches the normal type. Development of this character is dependent upon moisture. (From Morijan.) been found to depend upon the condition of the food. When the food is moist a high percentage of flies have abnormal abdomens, but when the larvae are raised on dry food nearly all of them have normal abdomens. 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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