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Maize provides a good example of linkage. Hutchinson crossed a variety of maize having coloured and full seed (CCSS) with a variety having colourless and shrunken seeds (ccss). The gene C for colour is dominant over its colourless allele c and the gene S for full seed is dominant over its shrunken allele s.

Linkage, as related to genetics and genomics, refers to the closeness of genes or other DNA sequences to one another on the same chromosome. The closer two genes or sequences are to each other on a chromosome, the greater the probability that they will be inherited together.

Linkage is the phenomenon in which two or more genes are located on the same chromosome and within such distances that they are considered as a single unit and inherited together. Thus a linkage group comprises all the genes located on a single chromosome.

A linkage is a phenomenon where two or more linked genes are always inherited together in the same combination for more than two generations. The recombination frequency of the test cross progeny is always lower than 50%. Therefore, if any two genes are completely linked, their recombination frequency is almost 0%.

The physical association of non-parental gene combinations is called linkage. The linked genes are located in the same chromosome. They do not independently assort but remain together in gametes and the offspring. In a dihybrid cross of the progeny, linked genes are 50 percent.

The inheritance of the same parental features for more than two generations is known as linkage. Recombination is the variation of parental qualities in the next generation to exhibit non-parental traits. It does not support the law of independent assortment.

The two different types of linkage are: Complete linkage. Incomplete linkage.