Article
Sex steroids at birth: genetic and environmental variation and covariation.
Developmental psychobiology - 1 Dec 1991
Sakai L M, Baker L A, Jacklin C N, Shulman I
Abstract excerpt
Three sex-steroids (estradiol, progesterone, & testosterone) were assayed from the umbilical cord blood of 58 same-sex twin pairs in an investigation of the effects of sex, as well as genetic and environmental factors, on neonatal hormone levels. Although significant mean differences were found b...
Topics
- Animals
- Estradiol
- Female
- Fetal Blood
- Genetic Variation
- Humans
- Infant, Newborn
- Male
- Progesterone
- Testosterone
- Twins, Dizygotic
- Twins, Monozygotic