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.
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.
Level of life
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
Small single-celled organisms without a nucleus, found almost everywhere on Earth. Most bacteria in the human body are harmless, and some are helpful.
Ethics and safety
Risk-based practices and containment that protect people and the environment when working with biological agents.
Technology or method
Designing and building new biological parts, circuits and systems.
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.
National Human Genome Research Institute. Talking Glossary of Genomic and Genetic Terms. National Human Genome Research Institute, NIH.
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.
Johnson IS (1983). Science 219:632-637.