DNA Flashcards
DNA
molecule found in the nucleus of all living cells.
Nucleotides
consist of a sugar phosphate and a base
Chargaffs rule
found that the amount of adenine always equals the amount of thymine
Watson and crick
1950s discovered that DNA has a Double-helix structure
Rosalind Franklin
was an English chemist and X-ray crystallographer who made contributions to the understanding of the molecular structures of DNA, RNA, viruses, coal, and graphite.
mutations
charges in the number, type, or order of bases on a piece of DNA
Adaptations
has three related meanings. Firstly it is the dynamic evolutionary process that fits a population of organisms to their environment, enhancing their evolutionary fitness
Species
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.
Evolution
is change in the heritable characteristics of biological populations over successive generations
Fossils
is any preserved remains, impression, or trace of any once-living thing from a past geological age.
Fossil Record
A term used by paleontologists ( see paleontology ) to refer to the total number of fossils that have been discovered, as well as to the information derived from them.
Charles Darwin
was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution.
Trait
a distinguishing quality or characteristic, typically one belonging to a person
Selective Breeding
is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females
Natural Selection
is the differential survival and reproduction of individuals due to differences in phenotype.