role of chromosones and hormones

Question 1

role of chromosomes

Answer 1

the 23rd chromosome determines bio sex
xx- f
xy- m
testes develop because of an area on the Y chromosome and testes produce androgens (m sex hormone) resulting in other sex dif

Question 2

role of hormones

Answer 2

influence bio development before birth and at puberty secondary sexual characteristics these may influence gender identity

Question 3

testosterone

Answer 3

higher conc in makes
starts dev of male genitalia at birth
leads to changes in hypothalamus
linked to aggression

Question 4

oestrogen

Answer 4

higher conc in females
produces female sexual characteristics and regulates menstruation
caring behaviour and irritability

Question 5

oxytocin

Answer 5

stress inducing love hormone
produced by both sex
probities pair bonding and large amounts in females during breast feeding to bond

Question 6

positive t

Answer 6

Van Beijsterveldt 70% variance in gender identity between 8,000 MZ AND DZ twins linked to genes

Theison- 13 transgender sequences and found 21 gene variations linked to pre birth oestrogen reception

Question 7

negative t

Answer 7

simplistic to see sex hormones as male or female bc oestrogen is used in male sex therapy to boost libido

specially sensitive

Question 8

atypical sex hormones

Answer 8

variations in the 23rd pair of chronometers from xy or xx

Question 9

example for male

Answer 9

klinefelters syndrome XXY biologically male
1/660
physical: long gangly limbs, small testes, lacks facial hair

Question 10

example for female

Answer 10

turner syndrome
XO
bio female
1/2,000
physical: short, limited breast development, no period, socially immature

Question 11

positive at

Answer 11

research has lead to treatments

Question 12

negative at

Answer 12

researching them to make assumptions about typical development is problematic as these people are rare and unusual experiences