Sexual differentiation in humans Sexual differentiation in humans Sexual differentiation in humans is the process of development of sex differences in humans. It is defined as the development of phenotypic structures consequent to the action of hormones produced following gonadal determination. Sexual differentiation includes development of different genitalia and the internal genital tracts, breasts, body hair, and plays a role in gender identification. The development of sexual differences begins with the XY sex-determination system that is present in humans, and complex mechanisms are responsible for the development of the phenotypic differences between male and female humans from an undifferentiated zygote. Females have two X
An Inheritance of Ashes Young Adult Fiction. "Publishers Weekly" felt it was "superb", commending Bobet as "an accomplished stylist". "Quill & Quire" considered it to be an "odd but remarkable story" and "touching yet eerie", describing the setting as "beautiful and barely comprehensible" and Hallie's narration as "reflective (and) poetic". "Kirkus Reviews" likewise noted that Hallie's narration had "an overabundance of poetic but lofty metaphors and similes", but conceded that the story had a "deep and sobering core". "Black Gate" considered it to have "the darkness and intensity of an adult novel", with "masterfully subtle (...) writing" and characters who are "full of surprises".