CRISPR is a precise gene‑editing system adapted from bacterial immunity. This module helps you understand how CRISPR works, how guide RNAs target specific DNA sequences, and how Cas enzymes cut and modify genetic material with remarkable accuracy.

You begin by exploring the natural origins of CRISPR, a microbial defence mechanism that stores viral sequences and uses them to recognise future infections. Scientists adapted this system into a programmable editing tool by designing guide RNAs that direct Cas enzymes to chosen genomic sites.

You then explore how gene editing occurs: the DNA is cut, and the cell’s repair machinery introduces changes through non‑homologous end joining or homology‑directed repair. The module also introduces next‑generation tools such as base editing and prime editing, which allow precise changes without making double‑stranded breaks.

Applications span medicine, agriculture, biotechnology, and research. You learn how CRISPR is used to correct genetic diseases, engineer crops, study gene function, and develop new therapies.

Ethical considerations, equity, safety, and germline editing are woven throughout, helping you understand the broader context.

By the end, CRISPR feels like a transformative tool reshaping biology and medicine.

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