Natural Selection Flashcards
deoxyribonucleic acid, a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live
DNA
in a nucleic-acid chain, a subunit that consists of a sugar, a phosphate, and a nitrogenous base
Nucleotide
the amount of adenine in DNA always equals the amount thymine. And the amount of guanine always equals the amount of cytosine.
Chargaff’s Rules
concluded that DNA must look like a long twisted ladder.
Watson and Crick
Used X-ray diffraction to make images to find the shape of DNA
Rosalind Franklin
A change in the nucleotide-base sequence of a gene or DNA modles
Mutations
a characteristic that improves an individuals ability to survive and reproduce in a particular enviroment
Adaption
a group of organisms that are closely related and can mate to produce fertile offspring.
Species
the process in which inherited characteristics within a population change over generations suck that new species sometimes arise
Evolution
the remains or physicile evidence of an organism preserved by geological process
Fossils
a historical sequence of life indicated by fossils found in layers of earths crust
Fossil Record
____________ _________ is best known for his work as a naturalist, developing a theory of evolution to explain biological change
Darwin
a genetically determined characteristic
Trait
the human practice of breeding animals or plants that have certain desired characteristics
Selective Breeding
the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do; a theory to explain the mechanism of evolution
Natural Selection
