Genetically modified animals are designed to contain the spread of pathogens. One prerequisite for the release of such organisms into the environment is that the new gene variant does not spread ...

Why can you possess traits neither of your parents have? The relationship of genotype to phenotype is rarely as simple as the dominant and recessive patterns described by Mendel. As opposed to partial ...

For female sheep, size matters. It has long been known that rams with big horns father twice as many lambs as those with small or no horns. Two years back, a team of scientists identified the gene in ...

Genetic screening programs of the general population are aimed at preventing common genetic diseases. There are several approaches for conducting genetic screening with depend on the target population ...

Genetically modified organisms must not be allowed to spread uncontrollably. Scientists are therefore keen to take advantage of a mechanism that will localise the spread of mutants. Mutants with a ...