What is inbreeding? Inbreeding is the mating of organisms closely related by ancestry. It goes against the biological aim of mating, which is the shuffling of DNA. Human DNA is bundled into 23 pairs of chromosomes, within each chromosome there are hundreds of thousands of genes and what’s more, each gene has two copies known as alleles.

Inbreeding increases the odds of recessive genetic traits being expressed. That’s pretty much it. Some of those things could be bad - like progressive retinal atrophy - and some of them could be good like a gene that increases herding instinct or something.

Inbreeding produces increased homozygosity of recessive partially deleterious mutants and by chance in small populations these alleles become fixed.

Apr 21, 2021 · Inbreeding leads to increased chances of developing blindness, hearing loss, neonatal diabetes, limb malformations, disorders of sex development, schizophrenia and many other illnesses, studies...

Nov 10, 2017 · Inbreeding is surprisingly common in many Muslim nations and communities, evidence shows. About 40 percent of the population marries a cousin in Egypt, according to a 2016 report in The Economist, while the percentage in Jordan is 32 percent. “Rates are thought to be even higher in tribal countries such as Iraq and the Gulf states of Saudi ...

Two of these individuals were products of a consanguineous mating with an inbreeding coefficient of F = 0.0391. The third affected individual (propositus), was born to a marriage in which the coefficient of inbreeding was 0.0742. The mother of the propositus, whose inbreeding coefficient was 0.0625, had borderline hypertelorism and a broad nose. Several other members …