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Helicase

Recombinant DNA

DNA joined from different sources, the starting point of genetic engineering and of medicines such as recombinant insulin.Source: NHGRISource: Cohen et al., 1973Source: Johnson, 1983

Also called genetic engineering, plasmid.

Technology or method

How Recombinant DNA connects

Recombinant DNA uses

  • Level of life

    DNA

    The molecule that stores the genetic instructions of all cellular life: two strands wound into a double helix and held together by base pairs.

  • Organism or group

    Bacteria

    Small single-celled organisms without a nucleus, found almost everywhere on Earth. Most bacteria in the human body are harmless, and some are helpful.

Recombinant DNA raises questions of

  • Ethics and safety

    Biosafety

    Risk-based practices and containment that protect people and the environment when working with biological agents.

Recombinant DNA is used by

Studied in

Your progress

Sources & further reading

The explanations on this page are our own summaries of these sources. Follow a link to read the original; if anything here disagrees with it, the original wins. How we choose and check sources.

  1. Construction of biologically functional bacterial plasmids in vitro (opens the original in a new tab)

    Cohen SN, Chang AC, Boyer HW, et al. (1973). Proceedings of the National Academy of Sciences 70:3240-3244.

    Recombinant plasmids that replicate in bacteria.

    Historical paperPrimary research