In humans and many other animal species, sex is determined by specific chromosomes. How did researchers discover these so-called sex chromosomes? The path from the initial discovery of sex chromosomes ...

Determining inheritance after a person passes away with no traditional resources like a will, trust or estate can be challenging. What can make things even more complicated is the fact that many ...

These activities introduce ideas about heredity, observing the differences and similarities in a population, and modeling how inheritance works. Campers can think about organisms as systems in which ...

Cystic fibrosis represents one of the most common inherited genetic disorders affecting people of European descent, touching the lives of approximately 30,000 individuals in the United States alone.

Telomeres are emerging as a biomarker for ageing and survival, and are likely important in shaping life-history trade-offs. In particular, telomere length with which one starts in life has been linked ...

A preliminary analysis is presented of the mode of inheritance of patterns of male secondary sex coloration in several wild populations of Lebistes reticulatus in Trinidad. A high proportion of such ...