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J Henahan

Publications and source records attributed to J Henahan.

26 records · Page 2Linked to original sources

Origin of X/O progeny from crosses of sex-ratio trait males of Drosophila pseudoobscura.

Males of Drosophila pseudoobscura carrying the sex-ratio chromosome (SR) were studied to determine the cause of X/O male progeny that they produce. It was found that among 3671 X/O progeny virtually all resulted from nullo-X sperm. The experiment also revealed a dramatic clustering of the frequency of X/O progeny among SR/Y males. This is interpreted to indicate that premeiotic events in the male germ line are the cause of nullo-X sperm.

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