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TIL that there is a mutation of the gene CCR5, called Delta 32, which introduces a premature stop codon into the gene. This premature codon means cells that have this mutation can’t receive the HIV virus. Individuals with a homozygous CCR5-Delta 32 mutation are completely resistant to the HIV virus.

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WkDaA TIL that Japanese is either written vertically from top to bottom, or horizontally from left to right, or horizontally from RIGHT to left! Sometimes, both vertical and horizontal writing can be found on the same page.
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