One of the fundamental rules of inheritance states that different alleles (gene copies) of a trait, such as sex, are ...

Try these interactive flashcards based on GCSE biology past papers. By working your way through the flashcards created by experts, you can prepare for your biology exams and make your revision more ...

Thomas G. McWilliams is at the Research Programs Unit, Stem Cells and Metabolism, Faculty of Medicine, University of Helsinki, Helsinki 00290, Finland. Luo and colleagues identified three families ...

The cytoplasm of eukaryotic cells is elaborately subdivided into membrane-bound compartments called organelles, each precisely tailored for a defined set of biochemical reactions. Cells must maintain ...

This is a preview. Log in through your library . Journal Information Evolution, published for the Society for the Study of Evolution, is the premier publication devoted to the study of organic ...

When scientists at the Max Planck Institute for Biology Tübingen set out to study how traits pass from one generation to another, they expected to find answers in genes. Instead, they found them in ...

Seven strains of the Central American A1 mating series of Didymium iridis were crossed in all possible combinations. Individual plasmodia were isolated and grown to a stage where total DNA could be ...