Zusammenfassung der Ressource
Gender and Chromosomes
- 23 pairs of chromosomes
- XX - Female
- XY - Male
- Autosomes, they carry the same information
- Usually there is a direct link between chromosomal
sex and external and internal genitalia
- During prenatal development male and female embros look the same
- The sex organs begin to develop differently at six weeks
- Atypical chromosome disorders
- Turners syndrome
- Identify themselves as females
- XO - Only survivable condition where one chromosome is inherited
- Physical characteristics
- No ovaries (no
menstruation)
- Sterile
- No breasts
- Short
- Webbed neck
- Low set ears
- Psychological characteristics
- High verbal ability
- Low spatial and mathematical ability
- Difficulty relating to peers
- 1 in 2000 births
- Klinfelter's
syndrome
- XXY - extra X chromosome
- Male
- 1 in 500
births
- Physical
characterists
- Undescended testes
and undersized penises
- Rounding of body contours
- Some breast development
- Little body hair
- Long
limbs
- Clumsy
- Psychological characteristics
- Lack of interest in sexual activity
- Passive
- Lacking in ambition
- Poor language and reading ability
- Poor judgement
- High level of gender confusion
- Atypical chromosome patterns support the role of
genetics in gender development as characteristics
are different from typical chromosome patterns