#mutation notes

[er-cryptid]

Gene Mutation

-- an alteration of the nucleotide sequence of a gene

-- caused by      -- errors in DNA replication      -- mutagens           -- UV           -- chemicals

-- a single gene is affected

-- influence is comparatively low

-- can cause      -- sickle cell anemia      -- hemophilia      -- cystic fibrosis      -- Huntington syndrome      -- Tay-Sachs disease      -- cancers

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[er-cryptid]

Factor V Leiden

-- mutation of one of the clotting factors, called factor V

-- mutation increases chances of developing abnormal blood clots

-- these developments are called thrombophilia

-- most people with the mutation never develop abnormal clots

-- both men and women can have the mutation

-- women have an increased tendency to develop blood clots during pregnancy or when taking estrogen

-- anticoagulant medications can lessen the risk of developing additional blood clots

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