Inbreeding
Reproduction by closely related organisms
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genetic disorders and other consequences that may arise from expression of deleterious recessive traits resulting from incestuous sexual relationships and consanguinity. Inbreeding results in homozygosity which can increase the chances of offspring being affected by recessive traits.
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