geniice t1_j63z5bv wrote
Reply to comment by GoGaslightYerself in TIL that after scientists sequenced the genome of a tiger they found that it shares 95.6% of its DNA with the domestic cat, from which it diverged 10.8 million years ago. by countdookee
> Roughly 10% of the human genome consists of about a million scattered copies of a single 286-base sequence (or "sentence") of this "junk DNA" called "Alu." It's the genomic equivalent of meaningless SPAM, repeated endlessly...
At least some of it controls gene expression. Beyond that the fact its highly conserved in primates suggests it does something.
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