The 1953 discovery established that deoxyribonucleic acid (DNA) has a double-helix structure consisting of two strands that coil around each other.
January 01, 1953
high
scientific
Structure of DNA as recognized since the mid-20th century
The double-helix structure of DNA explains how hereditary information is stored and how cells replicate DNA during cell division, beginning with the two strands separating like a zipper.
January 01, 1953
high
scientific
Mechanistic implication of DNA's double-helix structure for heredity and replication
In 1953, James D. Watson and Francis Crick, drawing on data from Maurice Wilkins and Rosalind Franklin, described deoxyribonucleic acid (DNA) as a double helix composed of two strands that coil around each other, resembling a twisting ladder.
January 01, 1953
high
temporal
Foundational description of DNA's molecular structure
The double-helix structure of DNA provides a mechanism for storing hereditary information and for DNA replication during cell division, where replication begins when the two complementary strands separate and each serves as a template for a new strand.
January 01, 1953
high
temporal
Biological implication of the DNA double-helix model
In 1953, James Watson and Francis Crick discovered the double-helix structure of DNA based on experimental data from Rosalind Franklin, Maurice Wilkins, and colleagues at King's College London.
January 01, 1953
high
temporal
Historical description of the discovery of DNA's molecular structure.
When a deceased person's body is unavailable, Jewish families may perform alternative or symbolic mourning rites or inter available biological material (for example, blood or DNA) to permit burial-related practices.
high
cultural
Describes practices adopted to enable mourning or burial rituals when a full body is not present.
DNA recovered from discarded personal items such as beverage cans can be used by investigators to link an individual to a crime scene.
high
forensic
Forensic investigators commonly analyze biological material on objects found at scenes to establish associations between persons and locations.