Biology and Sexual Orientation

Biology and sexual orientation is the subject of research into the role of biology in the development of human sexual orientation. No simple, single cause for sexual orientation has been conclusively demonstrated. Various studies point to different, even conflicting positions, such as a combination of genetic, hormonal, and environmental influences, with biological factors involving a complex interplay of genetic factors and the early uterine environment, or no genetic influence. Biological factors which may be related to the development of a heterosexual, homosexual, bisexual or asexual orientation include genes, prenatal hormones, and brain structure.

Read more about Biology And Sexual OrientationSexual Orientation and Evolution, Political Aspects

Other articles related to "sexual, biology and sexual orientation, orientation, sexual orientation":

Yellow-faced Pocket Gopher - Form and Function
... There is sexual dimorphism in the yellow-faced pocket gophers the males are larger than the females ... genera of pocket gophers continue to grow after attaining sexual maturity, but females grow little after reaching sexual maturity ...
J. Michael Bailey - Research and Criticisms - Biology and Sexual Orientation
... Bailey is well known for research involving biology and sexual orientation ... a series of twin studies which examined the rate of concordance of sexual identity among monozygotic twins (52% concordance), dizygotic twins of the same sex (22%), non-t ... found much lower concordance rates for monozygotic twins regarding homosexual orientation of only 20% for men and 24% for women pointing to a significant ...
Ephebophilia
... Ephebophilia is the primary or exclusive adult sexual interest in mid-to-late adolescents, generally ages 15 to 19 ... It is one of a number of sexual preferences across age groups subsumed under the technical term "chronophilia" ... denotes the preference for mid-to-late adolescent sexual partners, not the mere presence of some level of sexual attraction ...
Sexual Ageplay
... Ageplay can be sexual or non-sexual ... It may be mildly sexual, or very sexual ... Sexual variations may include among other things such as incest play, in which individuals recreate and sexualize roles within a family, and Daddy's girl ...
Biology And Sexual Orientation - Political Aspects
... Whether genetic or other physiological determinants form the basis of sexual orientation is a highly politicized issue ... Evidence that sexual orientation is biologically determined (and therefore perhaps immutable in the legal sense) would strengthen the legal case for ... The perceived causes of sexual orientation have a significant bearing on the status of sexual minorities in the eyes of social conservatives ...

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