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
What Time Is Love? What Time Is Love? "What Time Is Love?" is a song released, in different mixes, as a series of singles by the band The KLF. It featured prominently and repeatedly in their output from 1988 to 1992 and, under the moniker of 2K, in 1997. In its original form, the track was an instrumental techno anthem; subsequent reworkings, with vocals and additional instrumentation, yielded the international hit singles "What Time Is Love? (Live at Trancentral)" (1990) and "America: What Time Is Love?" (1991), which respectively reached number 5 and number 4 in the UK Singles Chart and introduced The KLF