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monohybrid(mŏn″ō-hī′brĭd) [″ + L. hybrida, mongrel]
monohybridan organism that carries two different ALLELES of one gene. For example character A (controlled by alleles A 1 and A2) would produce a monohybrid GENOTYPE of A 1A 2, i.e. a HETEROZYGOTE.
A monohybrid cross is one in which two parents are crossed to produce monohybrids that are then mated, or a single monohybrid plant is self-fertilized (see SELF-FERTILIZATION). Mendel formulated his law of SEGREGATION from the results of a monohybrid cross involving single characters in the pea plant.