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The biology of sexual orientation has been studied in detail in several animal model systems. In the common fruit fly Drosophila melanogaster, the complete pathway of sexual differentiation of the brain and the behaviors it controls is well established in both males and females, providing a concise model of biologically controlled courtship. [42]
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 ...
[11] [12] [13] Although scientists favor biological models for the cause of sexual orientation, [11] they do not believe that the development of sexual orientation is the result of any one factor. They generally believe that it is determined by a complex interplay of biological and environmental factors , and is shaped at an early age.
"Sexual preference" redirects here. For the book, see Sexual Preference.
A disorder of anxiety or depression related to an uncertainty about one's gender identity or sexual orientation has been classified as sexual maturation disorder by the World Health Organization in the ICD-10, under "Psychological and behavioural disorders associated with sexual development and orientation". [25] Sexual orientation by itself is ...
Intersex can be contrasted with homosexuality or same-sex attraction.Numerous studies have shown higher rates of same sex attraction in intersex people, [6] [7] with a recent Australian study of people born with atypical sex characteristics finding that, while 48% labeled themselves as straight, 52% of respondents labeled themselves as various other categories besides heterosexual.
If you've been having trouble with any of the connections or words in Monday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further down ...
The relationship between the environment and sexual orientation is a subject of research. In the study of sexual orientation, some researchers distinguish environmental influences from hormonal influences, [1] while other researchers include biological influences such as prenatal hormones as part of environmental influences.