this post was submitted on 21 Jan 2024
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Hey bro, can I have some antibiotic resistance?

Sure bro, but remember that the heavy metal tolerance gene is a dependency.

Shit, I'm on python 2 but hmrA requires python 3.

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[–] [email protected] 6 points 9 months ago

Rarely used stuff isn't junk DNA. It is still part of the genome, just expressed only under certain conditions (like stress).

Viral sequences do get embedded in host DNA. Some stay mostly inactive, others keep jumping around (and shuffling our genes in usually harmful but occassionally useful combinations) and yet others actually become useful to the host.