Maynard Smith suggested that homozygous individuals may, under particular environmental conditions, have a greater fitness than those with alleles heterozygous for a certain trait.

The disproportionate growth in numbers of the latter points to the relentless inbreeding resorted to among homozygous recessive individuals for selectively multiplying the white animals.

This experiment uses clonal screening to detect homozygous individuals and kept them in a constant line.

A homozygous recessive individual has an abnormal phenotype and is guaranteed to pass the abnormal gene onto offspring.

As reproductive fitness is not impacted, homozygous affected individuals have been reported.

To increase the probability of success it is better to raise hundreds of offspring, choosing only the best homozygous recessive individuals as future parents.

Underdominance can also be described as homozygote advantage, wherein homozygous individuals have a higher fitness than heterozygous individuals.

This results in a greater single-use bronchodilator response in individuals homozygous for Arg-16 compared to Gly-16 homozygotes.

One affected family has been identified with individuals both homozygous and heterozygous for MEN1 mutations.

Assortative mating does not change the frequency of individual alleles, but increases the proportion of homozygous individuals.