What can go wrong if errors are present in DNA?

If errors do occur during DNA replication, they can have serious biological and physiological effects. Many diseases are believed to be associated with errors in genetic sequences, including cystic fibrosis, sickle cell anemia, hemophilia, Huntingtonā€™s disease, Tay-Sachs disease, and a number of other genetic disorders. Other diseases or disorders may be linked to your genetics in a more complicated manner, such that you are more or less likely to suffer from them than the rest of the population. Some such diseases/disorders are cancers, mental/mood disorders, asthma, heart disease, and diabetes. Fortunately we have several DNA repair mechanisms that are constantly on the lookout for damaged DNA.


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