Role of Chromosomes and Hormones on Sex and Gender.

The role of Chromosomes:

Klinefelter's is when males have the chromosome pattern **Y rather than XY.

physical characteristics: include poor beard growth, breast development, undeveloped testicles that cause infertility, long limbs, prone to cardiovascular issues.

Psychological effects: Low reading abilities, low language abilities, prone to depression, attention problems.

Evidence:

Simpson found behavioural and language abilities can be treated with androgen therapy (testosterone injections).

De Lesi did fMRI found smaller Broca and Wernicke areas.

Turners syndrome is when their chromosome pattern is XO rather than **. 

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