Gender Flashcards
Chromosomes [definition]:
X-shaped bodies that carry all genetic information for an organism
Hormones [definition]:
Chemical messengers in the body
Intersex [definition]:
An individual who is neither distinctly male or female due to a mismatch (e.g. chromosomes n genitalia)
How many pairs of chromosomes do each individual typically have?
23
Female pair of chromosomes =
xx
Male pair of chromosomes =
xy
Klinefelter’s syndrome [5]:
- Due to XXY configuration
- Reduced levels of testosterone
- Individual is born with a penis n develops as a fairly normal male
- Individuals tend to be infertile
- 1/1000 males have it
What does an individual with Klinefelter’s syndrome look like? [5]:
- Taller than average 'Less masculine' may have: - Less facial hair - Broader hips - Possible breast tissue
What causes Turner’s syndrome [2]:
- Due to an XO configuration
- Meaning that the 2nd chromosome is partly or completely gone
What causes the appearance of an individual of Klinefelter’s syndrome?
Reduced levels of testosterone
Turner’s syndrome [2]:
- Occurs in 1 of 2000 females at birth
- Individual born with a vagina and womb
What are the characteristics of Turner’s syndrome? [3]:
- Shorter than average height
- Lack of monthly period due to underdeveloped ovaries
- Wide range of other symptoms, no two XO females are the same
Testosterone [4]:
- Produced prenatally
- Affects development of genitalia
- testosterone affects brain development both prenatally and later in childhood
- Surge of testosterone during puberty responsible for facial hair and deepening voice
Berenbaum and Bailey 2003 [3]:
- XX female exposed prenatally to large doses of male hormones
- Pregnant mother given drugs containing male hormones
- Child later showed tom boy-ish behaviour and interest in more ‘male activities’
Oestrogen [3]:
- The default gender is female so female hormones are not needed for prenatal genital development
- Promotes secondary sexual characteristics during puberty
- Directs the menstrual cycle
Oxytocin [4]:
- Produced in the pituitary gland
- Evokes feelings of contentment and calmness
- Related to faster wound healing and orgasms in both men and women
- Breast feeding
Oxytocin in breast feeding;
Causes milk to flow in a lactating mother
Shi et al (2015):
Some researchers found that oestrogen may lead to smaller brain size