Which one of the following is the correct chronology of invention/discovery in the field of Biotechnology?

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Q: 47 (CAPF/2024)
Which one of the following is the correct chronology of invention/discovery in the field of Biotechnology?

question_subject: 

Science

question_exam: 

CAPF

The correct sequence of discoveries is: Double Helical structure of DNA was discovered in 1953, Plasmids in the early 1970s, DNA fingerprinting in 1984, and cloning of Dolly the sheep in 1996.