Friday - reproductive development - severson

Question 1

two x chromosomes vs lack of y

Answer 1

2 x required for complete ovary development

lack of y - ovary formation, but not complete i guess

Question 2

testosterone determines

estrogen determines

Answer 2

maleness

influences feminization of external genitalia

Question 3

klinfelter karyotype
due to
characteristics

Answer 3

47 xxy (mlae bc there’s a y)

non-disjunction of xx

gynecomastia, infertility, atrophic testis, small ween

Question 4

turner syndrome
karyotype
due to
looks like

Answer 4

45 XO
lack of paternal chomosome
webbed neck, sheild chest, inverted nips, short

Question 5

ovotesticular disored karyotype

characteristics

Answer 5

46xx

have balls and ovaries

Question 6

gametes migrate from

Answer 6

umbilical yolk sac.

Question 7

seminiferous tubules come from what

are precursors to what cells

Answer 7

cortical cords

sertoli cells

Question 8

epispadious is associated with what

Answer 8

extrophy of bladder

Question 9

labia min and maj come from what

Answer 9

min - urogenital fold - they don’t fuse like in men

maj - labiosacral swellings

Question 10

disorder of sex delevopment (CAH)
karyotype and cause

symptoms

Answer 10

from adrenal hyperplasia (makes extra testosterone)
46xx
fusion of labia, large clioris, internal organs are female

can also have vagina opening into the urethra

Question 11

disorder of sex delevopment (androgen insensiivity)
karyotype
phenotype

Answer 11

46xy

look exactly like a girl, but have internal testicles. the receptors just don’t work