DNA Flashcards
DNA
the fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.
nucleotide
a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
Chargaff’s rule
Chargaff’s rules state that DNA from any cell of all organisms should have a 1:1 ratio
Watson and crick
The two twentieth-century biologists (James D. Watson of the United States and Francis
Rosalind Franklin
British x-ray crystallographer whose diffraction images, made by directing
Mutations
the action or process of mutating.
Adaptation
the action or process of adapting or being adapted.
Species
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted
Evolution
the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
fossils
the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.
fossil record
. A term used by paleontologists ( see paleontology ) to refer to the total number
Charles Darwin
Darwin, Charles definition. A British naturalist of the nineteenth century.
trait
a distinguishing quality or characteristic, typically one belonging to a person.
Selective Breeding
Selective breeding (also called artificial selection) is the process
Natural Selection
the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded.
