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@TheSeeker7 my oldest daughter has PKU. I am very familiar to the heel prick. 
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What if they do?
For what it’s worth, DNA (Deoxyribonucleic acid)
/ˌdiːɛnˈeɪ/
noun
For a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
The fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.
“Diversity is part of the company’s DNA”
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