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The male sexual organ of an adult banana slug is quite large in proportion to its size, as well as compared to the female organ. It is possible for banana slugs, while mating, to become stuck together. If a substantial amount of wiggling fails to separate them, the male organ will be bitten off (using the slug's radula), see apophallation. If a ...
Androgyny is the possession of both masculine and feminine characteristics. [1] Androgyny may be expressed with regard to biological sex or gender expression.. When androgyny refers to mixed biological sex characteristics in humans, it often refers to conditions in which characteristics of both sexes are expressed in a single individual.
This is an accepted version of this page This is the latest accepted revision, reviewed on 1 February 2025. Atypical congenital variations of sex characteristics This article is about intersex in humans. For intersex in other animals, see Intersex (biology). Not to be confused with Hermaphrodite. Intersex topics Human rights and legal issues Compulsory sterilization Discrimination Human rights ...
In redlip blennies, only the male fish develops an organ at the anal-urogenital region that produces antimicrobial substances. During parental care, males rub their anal-urogenital regions over their nests' internal surfaces, thereby protecting their eggs from microbial infections, one of the most common causes for mortality in young fish.
XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]
According to Leah DeVun, a "traditional Hippocratic/Galenic model of sexual difference – popularized by the late antique physician Galen and the ascendant theory for much of the Middle Ages – viewed sex as a spectrum that encompassed masculine men, feminine women, and many shades in between, including hermaphrodites, a perfect balance of ...
A fertilized egg that a male organism is developing in [3] This article focuses on the first definition. Male eggs are the result of a process in which the eggs of a female would be emptied of their genetic contents (a technique similar to that used in the cloning process), and those contents would be replaced with male DNA. Such eggs could ...
The nematode C. elegans is male with one sex chromosome (X0); with a pair of chromosomes (XX) it is a hermaphrodite. [22] Its main sex gene is XOL, which encodes XOL-1 and also controls the expression of the genes TRA-2 and HER-1. These genes reduce male gene activation and increase it, respectively. [23]