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The human Y chromosome showing the SRY gene which codes for a protein regulating sexual differentiation. 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. [1]
Along with using the gender binary to categorize human bodies, cultures that obey the binary may also use it to label things, places, and ideas. For example, in American culture, people identify playing sports as a masculine activity and shopping as a feminine activity; blue is a color for boys while pink is for girls; care work is a feminine ...
Human sexuality is the way people experience and express themselves sexually. [1] [2] This involves biological, psychological, physical, erotic, emotional, social, or spiritual feelings and behaviors. [3] [4] Because it is a broad term, which has varied with historical contexts over time, it lacks a precise definition. [4]
Sexual differentiation is the process of development of the sex differences between males and females from an undifferentiated zygote. [1] [2] Sex determination is often distinct from sex differentiation; sex determination is the designation for the development stage towards either male or female, while sex differentiation is the pathway towards the development of the phenotype.
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 January 2025. Pattern of romantic or sexual attraction "Sexual preference" redirects here. For the book, see Sexual Preference (book). Sexual orientation Sexual orientations Asexual Bisexual Heterosexual Homosexual Related terms Allosexuality Androphilia and gynephilia Bi-curious Gray asexuality ...
In invertebrates and plants, hermaphrodites (which have both male and female reproductive organs either at the same time or during their life cycle) are common, and in many cases, the norm. In other varieties of multicellular life (e.g. the fungi division, Basidiomycota ), sexual characteristics can be much more complex, and may involve many ...
Sex differences in human physiology are distinctions of physiological characteristics associated with either male or female humans. These can be of several types, including direct and indirect, direct being the direct result of differences prescribed by the Y-chromosome (due to the SRY gene ), and indirect being characteristics influenced ...
Several studies suggest that there is a link between hormone levels and partner selection among humans. In a study measuring female attraction to males with varying levels of masculinity, it was established that women had a general masculinity preference for men's voices, and that the preference for masculinity was greater in the fertile phase ...