News tagged with sex

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Gender registration should be as easy as changing names

South Australia should have a system that allows adults to change their registered sex or gender by a simple application to the Office of Births, Deaths and Marriages, according to law experts from the University of Adelaide.

Feb 10, 2016
popularity15 comments 0

Are male and female brains really different?

Along with just about every other aspect of real or imagined differences between the sexes, the idea that your biological sex will determine the sex of your brain – and so your behaviour, aptitudes and personality – has ...

Feb 09, 2016
popularity33 comments 0

Indian minister wants compulsory prenatal sex tests

India's children's minister has called for mandatory tests to determine the sex of an unborn child to try to counter high levels of female foeticide, sparking fierce criticism Tuesday from women's activists.

Feb 02, 2016
popularity11 comments 0

Heart attack: Gender matters in predicting outcomes

Sex (biological and physiological characteristics) differences are increasingly being studied to assess symptoms, risk factors and outcomes for various diseases. Now, a new pan-Canadian study led by a team from the Research ...

Feb 01, 2016
popularity3 comments 0

Sex

In biology, sex is a process of combining and mixing genetic traits, often resulting in the specialization of organisms into male and female types (or sexes). Sexual reproduction involves combining specialized cells (gametes) to form offspring that inherit traits from both parents. Gametes can be identical in form and function (known as isogametes), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist: male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism.

An organism's sex is defined by the gametes it produces: males produce male gametes (spermatozoa, or sperm) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.

This text uses material from Wikipedia, licensed under CC BY-SA

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