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Biol Bull 91: 243-246. (December 1946)
© 1946 Marine Biological Laboratory
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A STRONGLY INTERSEXUAL FEMALE IN HABROBRACON

P. W. WHITING 1

1 University of Pennsylvania, Philadelphia, and the Marine Biological Laboratory, Woods Hole

An intersexual female developed from a heavily x-rayed egg fertilized by an untreated sperm. The specimen is more strongly intersexual than a group of nine previously reported, for its external female genitalia are much reduced, its poison apparatus defective and its ovaries altogether lacking. Externally, it appears like a diploid male with small female genitalia.

It is suggested that the x-radiation may have caused a change within a sex-differentiating allele, so that the heterozygote would develop into an intersex rather than a normal female.






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Copyright © 1946 by the Marine Biological Laboratory.