Early in fetal development, a mass of cells known as the bipotential gonad has the possibility of giving rise either to ovaries or testes, reproductive organs that contribute to many of the ...

Genetic conditions often result from inherited mutations passed down from one or both parents. In an inherited genetic disorder, a mutated gene is transmitted from a parent. 3 Recent developments have ...

From invisible wafts of diesel exhaust to sun-choking plumes of orange smoke, air pollution is known to damage respiratory well-being. Now, research suggests another reason to hold our breath: ...

The vulva and the female external genitalia begins to develop while the baby is still within the mother’s womb. The development again gains acceleration during puberty when the female reproductive ...

Assisted reproductive technologies are medical procedures that help people experiencing difficulty having or an inability to have biological children of their own. From in vitro fertilization to ...

Early in human development, during the first trimester of gestation, a fetus may have XX or XY chromosomes that indicate its sex. Yet at this stage a mass of cells known as the bipotential gonad that ...