GCSE; Edexcel; Genetic inheritance - Edexcel Carrying out a genetic cross. Mutations can cause a permanent change in the DNA of an organism. In the 19th century Gregor Mendel determined rules to ...

Genetic diagrams show how characteristics are inherited. Alleles can be recessive, dominant or codominant genes.

Collaborative Cross (CC): A genetically engineered mouse population derived from eight inbred strains designed to maximise genetic diversity and facilitate the mapping of complex traits.

A test cross is a way to explore the genotpye of an organism. Early use of the test cross was as an experimental mating test used to determine what alleles are present in the genotype. An organism ...