. Contributions to the genetics of Drosophila melanogaster. Drosophila melanogaster; Heredity; Karyokinesis. THE ORIGIN OF GYNANDROMORPHS. 39 the abdomen had male coloration on both sides and the genitalia were largely male. The right eye was eosin of the male type. The left side was mostly female with a red eye and a large notched wing. The gonads seen through the body-wall seemed to be both ovaries. Explanation.—A notch-bearing egg was fertilized by an eosin sperm. Elimination of the maternal notch X occurred. N w' w. Text-figure 20. No. F. January, 1916. T. H. Morgan. Text-figure 20 (di
. Contributions to the genetics of Drosophila melanogaster. Drosophila melanogaster; Heredity; Karyokinesis. THE ORIGIN OF GYNANDROMORPHS. 39 the abdomen had male coloration on both sides and the genitalia were largely male. The right eye was eosin of the male type. The left side was mostly female with a red eye and a large notched wing. The gonads seen through the body-wall seemed to be both ovaries. Explanation.—A notch-bearing egg was fertilized by an eosin sperm. Elimination of the maternal notch X occurred. N w' w. Text-figure 20. No. F. January, 1916. T. H. Morgan. Text-figure 20 (diagram). Parentage.—The parentage of gynandromorph F is unrecorded, though it is probable that it was found in a wild stock. Description.—The fly was a completely bilateral gynandromorph having on the right side a sex-comb, shorter wing, shorter bristles, and smaller parts in head, thorax, and abdomen. The coloration of the abdomen was male at the tip on the right side, but female in the remainder. The genitalia were entirely female. The abdomen contained a fully developed pair of ovaries and she produced many offspring which were all wild-type. Explanation.—Elimination of one X occurred in a normal female zygote; whether this X was maternal or paternal is 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 Carnegie Institution of Washington; Morgan, Thomas Hunt, 1866-1945; Bridges, Calvin B. (Calvin Blackman), 1889-1938; Sturtevant, A. H. (Alfred Henry), 1891-1970. Washington, Carnegie Institution of Washington
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