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Mirror Bacteria: Should We Build Life in Reverse?

22 October, 2026

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Last updated: 25 October, 2026

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Mirror Bacteria: Should We Build Life in Reverse?

All life on Earth follows one hidden rule: proteins are built from left-handed amino acids, and DNA and RNA from right-handed sugars. Mirror life would flip that rule.

In December 2024, 38 scientists warned in the journal Science that mirror bacteria should not be created without clear proof of safety. This short Bichitro Biggan video explains why: what chirality is, what a mirror bacterium would be, and why our immune system, and the microbes that clean up nature, might not recognise it.

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Videos Chirality Mirror Life Biology
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Tanvir Hossain

bichitrobiggan.com

Tanvir Hossain has been writing about science since his student days, with one habit above all: explaining it in plain language. His aim is to make science part of everyday conversation in Bangladesh and to give young readers a scientific turn of mind. Two of his books, Shatabdir Biggan and Bichitro Biggan, have found a wide readership.

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