. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. ALLELOMORPHIC RELATIONSHIPS IN MEN DELI SM 149 When the Fz was grown from such an Fo population Miss Marryat obtained excellent agreement with this analysis as is shown by the data in Table XXIX. Variable Character Expression in the Hybrid.—Sometimes the character expression in i^i while intermediate displaJ^s a range of varia- tion extending almost from one parent to the other. This is shown rather strikingly in the case of bar eyes in Drosophila (Fig. 69). The bar eye factor is a sex-linked mutan


. Genetics in relation to agriculture. Livestock; Heredity; Variation (Biology); Plant breeding. ALLELOMORPHIC RELATIONSHIPS IN MEN DELI SM 149 When the Fz was grown from such an Fo population Miss Marryat obtained excellent agreement with this analysis as is shown by the data in Table XXIX. Variable Character Expression in the Hybrid.—Sometimes the character expression in i^i while intermediate displaJ^s a range of varia- tion extending almost from one parent to the other. This is shown rather strikingly in the case of bar eyes in Drosophila (Fig. 69). The bar eye factor is a sex-linked mutant factor which is responsible for the pro- duction of flies with long narrow eyes instead of the round eyes normal for the species. When a female with bar eyes is crossed to a normal male the Fi all have bar eyes. In the males especially the eyes are. 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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