• Question: are insest people always deformed

    Asked by milkynuggets to Joanna on 16 Nov 2012.
    • Photo: Joanna Giles

      Joanna Giles answered on 16 Nov 2012:

      Inbreeding in animals is not good for the offspring – because there is more homozygosity in the genes- meaning that there is more chance for bad recessive traits to be expressed (so where only one copy of the gene is needed for it to be expressed as a phenotype). So this means that “bad genes” are more likely to be inherited – including genetic disorders.

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