DNA Meaning: Definition, Examples, and Translations
๐งฌ
DNA
[หdiหษnหeษช ]
Definition
genetics
Deoxyribonucleic acid, a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
Synonyms
deoxyribonucleic acid.
Which Synonym Should You Choose?
| Word | Description / Examples |
|---|---|
| DNA |
Commonly used in both everyday language and informal settings when referring to genetic material. It is suitable for both scientific and general discussions.
|
| deoxyribonucleic acid |
Primarily used in formal, scientific, or academic contexts. This term is preferred in technical documents, research papers, and educational materials.
|
Examples of usage
- DNA contains the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms.
- The structure of DNA was first described by James Watson and Francis Crick in 1953.
Translations
To see the translation, please select a language from the options available.
Interesting Facts
Science
- Each human being has about 3 billion DNA base pairs, which are the building blocks of life and contain the instructions for making proteins.
- DNA replication is crucial for cell division, allowing an organism to grow, repair tissues, and reproduce.
- The structure of DNA is famously described as a double helix, which resembles a twisted ladder, discovered by James Watson and Francis Crick in 1953.
History
- In 1859, Charles Darwin published his theory of evolution, suggesting that DNA plays a critical role in how traits are passed down through generations.
- The first complete DNA sequence was completed in 1995, mapping the genome of the bacterium Haemophilus influenzae, marking a breakthrough in genetic research.
Pop Culture
- DNA has been a central theme in popular films and books, often relating to genetic engineering, such as in movies like 'Jurassic Park,' where scientists recreate dinosaurs.
- The term 'DNA' is used metaphorically in various contexts, often referring to essential characteristics of a group or individual, such as 'the DNA of a company' representing its core values.
Psychology
- Research in genetics shows that DNA influences not only physical traits but also aspects of personality and behavior, though environment plays a significant role too.
- Studies have indicated that certain genetic markers can predispose individuals to various mental health conditions, providing insights into the biological aspects of psychology.
Origin of 'DNA'
Main points about word origin
- DNA stands for Deoxyribonucleic Acid, deriving from Latin, where 'deoxyribo' refers to the sugar in its structure and 'nucleic' indicates itโs found in the nucleus of cells.
- The term 'nucleic acid' was first used in the late 1800s when scientists discovered the substance in cell nuclei.
The discovery of DNA dates back to the late 19th and early 20th centuries, with key contributions from scientists such as Friedrich Miescher, Phoebus Levene, and Erwin Chargaff. However, it was not until the landmark discovery of the DNA double helix structure by James Watson and Francis Crick in 1953 that the true significance of DNA as the genetic material was fully recognized. Since then, DNA has become a fundamental concept in genetics and molecular biology, revolutionizing our understanding of heredity and evolution.