Does inbreeding hurt animal populations?



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    Inbreeding is harmful to populations because it increases the likelehood of undesirable traits manifesting themselves. This is because a lot of genetic diseases are recessive, which means you need a copy of the disease gene from each parent in order to get the disease. This is more likely to happen if the parents are related, because their genes are more similar, and they’re each more likely to both have a copy of the deleterious recessive gene. These genes may come together when they produce offspring, resulting in unhealthy offspring.

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