DNA
Deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
Specifically refers to the complex molecule that encodes genetic instructions, not the information itself (which is 'genetic information').
Word relationships
- genetic material: Broader term, can include RNA.
- blueprint of life: Figurative, emphasizes its informational role.
Collocations
- DNA sequence
- DNA replication
- DNA testing
- DNA fingerprinting
- mitochondrial DNA
Example sentences
- "The double helix structure of DNA, discovered by Watson and Crick, allows it to store and transmit vast amounts of genetic information." Explaining its function.
- "Every cell in your body, except for red blood cells, contains a complete set of your DNA." Referring to its presence.
Memory hook
'DNA' is like the 'Digital Naming Archive' for every living thing, holding all the instructions. Digital Naming Archive.
When not to use
While often used colloquially to mean 'essence' or 'fundamental character' (e.g., 'it's in their DNA'), in a scientific or formal context, it refers strictly to the molecule.
Fun facts
- If you uncoiled all the DNA in a single human cell, it would stretch about 2 meters (6 feet).
- The first complete human genome sequence was published in 2003, a monumental scientific achievement.
Related words
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