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 ...

Some genes are passed on from parent to offspring without ever being part of a nuclear chromosome. Where are these genes found, and how does this non-nuclear inheritance occur? But why is leaf color ...

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 ...