Fetal Development
Is estrous cycle shorter in a 0M female or a 2M female?
0M female
Is sexual behavior at breeding stronger in a 0M female or a 2M female?
0M female
is puberty onset earlier in 0M female or a 2M female?
0M female
Is aggression to other females higher in a 0M female or a 2M female?
2M female
Is the anogenital distance longer in a 0M female or a 2M female?
2M female
Which has more M offspring, a 0M female or a 2M female?
2M female
What is a 1M female?
A female fetus that is surrounded by 1 female and 1 male in utero
What is a 2M female?
A female fetus that is surrounded by 2 males in utero
What is a 0M female?
A female fetus that is surrounded by 2 other females in utero
What is a 1M male?
A male fetus that is surrounded by 1 female and 1 male in utero
What is a 0M male?
A male fetus that is surrounded by 2 females in utero
What is a 2M male?
A male fetus that is surrounded by 2 males in utero
Which fetal steroid is elevated in 0M females?
Estrogen
What is the result of stress placed on a mother mouse at day 12-17 of gestation?
Masculinizes females (especially 0M and 1M females). Very little change to 2M females. Increase in anogenital length, longer estrous cycles, etc
What is the implication of fetal development differences on sex differentiation in mammals?
Sex is determined by genetics, but reproductive characteristics can be modified because of the intrauterine environment
Which fetal steroid is elevated in 2M females?
Testosterone
What is intrauterine position
The sex of an individual in fetus in relation to adjacent feti
