Characteristics are passed from parents to offspring. A gene is a small section of DNA that codes for a characteristic (e.g. eye colour). Alleles are different forms of the same gene, for example blue ...

Dosage suppression is a genetic interaction in which overproduction of one gene rescues a mutant phenotype of another gene. Although dosage suppression is known to map functional connections among ...

In the natural world, genes don’t always operate independently. They can function as part of a set of genes and can be regulated at many levels, including by one another in feedback mechanisms that ...

Pedigree diagrams are used to show how a genetic condition is inherited in a family. They are often used to advise individuals within a particular family if they are carriers of a condition.