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A comment on Human gene linked to bigger brains was born from seemingly useless DNA. Parent comment

Re:Human gene linked to bigger brains was born from seemingl... by winter_blue on Friday January 06, 2023 @12:45PM (#34278125)
> It takes energy to copy, and misreading it can cause fatal or maladaptive mutations

Can maladaptive mutations really be caused by copying DNA that's not used much (as far as we can tell, like the DNA for endogenous retroviruses in our genome)?

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