PCR or polymerase chain reaction was discovered by

• (a) Jeffreys
• (b) Nakamura
• (c) Karry Mullis
• (d) Lander

The polymerase chain reaction (PCR) is a revolutionary technique in molecular biology that was discovered by Kary Mullis in 1983. This method allows for the amplification of specific DNA sequences, making it easier to study genetic material.

About Kary Mullis

Kary Mullis was an American biochemist who developed PCR while working at Cetus Corporation. His invention has had a profound impact on genetics, forensics, and medical diagnostics.

Significance of PCR

• Enables rapid DNA amplification.
• Facilitates genetic research and testing.
• Essential for forensic analysis and disease detection.

In summary, the correct answer to your question is (c) Kary Mullis.