Synthetic biology
The discipline of engineering living cells and organisms the way engineers design circuits — reading, writing, and rewiring genetic code to produce new functions.
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Every cell runs on a program written in DNA. Synthetic biology treats that program as editable: researchers design genetic sequences on a computer, synthesise them chemically, and insert them into cells to change what those cells do — produce a drug, sense a disease signal, or take on a form nothing in nature has taken before. What distinguishes it from classical genetic engineering is the scale and intentionality: whole metabolic pathways, not single genes. The hard part is that cells are not passive hardware; they push back — evolving away from designed states, misfolding proteins, and interacting with their environment in ways no model fully predicts.
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The zombie-cell shortcut
JCVI poisoned a bacterium's DNA with a chemotherapy drug, then slid a synthetic genome from a different species into the dead cell — and some woke up and divided.
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