. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GYNANDROMORPHS IN HABROBRACON. 115 The evidence does not prove although it is consistent with the theory that male parts are from one ootid, female parts from a fusion of another ootid and the male pronucleus. Intersexes. The fundamental distinction between gynandromorphs and intersexes is that the former are genetic mosaics while in the latter all parts of the body are presumed to be of similar genetic constitution. Male and female parts of gynandromorphs occur in distinct regions while intersexes are either male with a gre
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. GYNANDROMORPHS IN HABROBRACON. 115 The evidence does not prove although it is consistent with the theory that male parts are from one ootid, female parts from a fusion of another ootid and the male pronucleus. Intersexes. The fundamental distinction between gynandromorphs and intersexes is that the former are genetic mosaics while in the latter all parts of the body are presumed to be of similar genetic constitution. Male and female parts of gynandromorphs occur in distinct regions while intersexes are either male with a greater or less female tendency or female with a greater or less male tendency. Intersex, freak 193, occurred in a male brood, hence in all probability from an unfertilized egg. It is therefore to be considered as an intersexual male. Intersexes, freaks 273, 274, 275, occurring in one culture, differ from a gynandromorph in that the male and female regions are not definitely defined. They are considered to be male intersexes although their short antennae may indicate that they are gynandromorphs with female heads. Freak 271, a sib to freaks 273, 274, and 275, with male head, male responses and female abdomen should be regarded as a gynandromorph. Its irregular sternites and relationship to inter- sexual males may indicate that it is also intersexual. Behavior of Gynandromorphs. Responses of mosaic males and of impaternate females do not differ from responses of normal males and females respectively. The fourteen gynandromorphs and one intersex of Habrobracon tested may be grouped with respect to responses as follows: (i) Typically male. Juglandis freaks 246, 247, 248, 249, and 267 were definitely and strongly male. Juglandis freak 255 was definitely male but failed to mount females. This failure may be due to injury of antennas by ether. Juglandis freak 250 and brevicornis freak 269 were strongly male but each of these was seen to pierce the cotton plug with its sting, a reaction
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
