role of chromosomes and hormones Flashcards
describe testosterone
-development of internal & external genitalia
- secondary sexual characteristics, – facial hair, voice breaking, etc.
what does research show about girls whose mums had extra testosterone during pregnancy
more tomboyish - hormones affect brain
describe oestrogen
Becomes most relevant at puberty – breast development &
menstrual cycle.
what does research show about oestrogen
affects brain size in females
describe oxytocin
love hormone
- makes you want to bond with another
-helps with breastfeeding & bonding with the baby
what is androgen insensitivity syndrome
- intersex condition
individual with XY sex chromosomes does not respond to testosterone during gestation.
what is Klinefelter’s syndrome?
males born with an extra X chromosome
XXY instead of XY
what is Turner’s syndrome?
females born with missing X
characteristics of Klinefelter’s syndrome
psychological: poor language and reading, socially introverted
physical: taller, smaller penis, less facial hair, larger breasts
charateristics of Turner’s syndrome
physical: webbed neck, small breasts, infertlitity
psychological: better reading ability,poor memory + maths, social immaturity
define chromosome
carry genetic info about characteristics, XX and XY
AO3= research support for biological determinism
David Reimer
born XY but accidentally castrated so raised as Brenda
- not happy when told true sex + reverted back to a man
-shows biological factors do play a role
AO3= cultural differences at play
Batista famly
4 children as girls but developed male genetalia due to surge of testosterone
- they and their community accepted their new identity
AO3= useful applications of research
at first surgery was norm for intersex conditions but now its recommended they wait until the individual can make an informed decision
- removes stigma
