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Bilateral Gynandromorph - Great Mormon (Papilio memnon)

A gynandromorph is an organism that contains both male and female characteristics. The term gynandromorph, from Greek "gyne" female and "andro" male, is mainly used in the field of Lepidopterology (butterfly/moth study) or entomology (all insects). These characteristics can be seen in butterflies, where both male and female characteristics can be seen physically because of sexual dimorphism.

 

A gynandromorph can have bilateral asymmetry, one side female and one side male, or they can be mosaic, a case in which the two sexes aren't defined as clearly.

 

Bilateral gynandromorphy arises very early in development, typically when the organism has between 8 and 64 cells. Later the gynandromorph is mosaic.

 

Great Mormon (Papilio memnon) is a large butterfly that belongs to the Swallowtail family and is common to South-Asia. It is widely distributed and has thirteen subspecies. The female is polymorphic and with mimetic forms. The butterfly is large with 120 to 150 mm span. It has four male and many female forms, the females being highly polymorphic and many of them being mimics of unpalatable butterflies. This species has been studied extensively for understanding the genetic basis for polymorphy and Batesian mimicry. As many as twenty-six female forms are reported

 

Sources: en.wikipedia.org/wiki/Gynandromorph

en.wikipedia.org/wiki/Great_Mormon

 

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Uploaded on July 9, 2011