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The changes in East Africa's cultural and economic framework can partially be attributed to British colonial rule because it altered the gender division of labor. [149] There was an increase in wage labor which led to a demand for more skilled workers in an environment where there were primarily unskilled workers. [ 149 ]
2–3 Development of Wolffian ducts: 5 7 Migration of primordial germ cells in the undifferentiated gonad: 6 10–15 Development of Müllerian ducts: 7 13–20 Differentiation of seminiferous tubules: 8 30 Regression of Müllerian ducts in male fetus: 8 32–35 Appearance of Leydig cells. First synthesis of testosterone: 9 43
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.
Some other sex-related health differences include: Anterior cruciate ligament (ACL) injuries, especially in basketball, occur more often in females than in males. [142] From conception to death, but particularly before adulthood, females are generally less vulnerable than males to developmental difficulties and chronic illnesses.
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[a] [2] [3] Before adulthood, a male child or adolescent is referred to as a boy. Like most other male mammals, a man's genome usually inherits an X chromosome from the mother and a Y chromosome from the father. Sex differentiation of the male fetus is governed by the SRY gene on the Y chromosome.
This is because "complete maleness and complete femaleness represent the extreme ends of a spectrum of possible body types." In other words, Fausto-Sterling argues that sex is a continuum. She believes that sex is socially constructed because nature does not decide on who is seen as a male or female physically.
The World Health Organization states "As a social construct, gender varies from society to society and can change over time." [ 132 ] Sociologists generally regard gender as a social construct. For instance, Ann Oakley , a professor of sociology and social policy, says "the constancy of sex must be admitted, but so also must the variability of ...