Studies on the effects of some genetic lethal factors on the embryonic development ofDrosophila melanogaster : I. A preliminary survey of some sex-linked lethal stocks, and an analysis of the mutantLff 11
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1. Out of seventy sex-linked lethal mutants examined, twelve were found to cause death in the embryonic stage. 2. In six of the embryonic lethals, no visible abnormalities occurred, but the embryos failed to hatch. 3. In the other six cases there were obvious ... ...
