Evolution Ch.1

Front 1

Biological evolution

Back 1

is any change in the inherited traits of a population that occurs from one generation to the next

Front 2

Lineage

Back 2

A chain of ancestors and their descendants. A lineage may be the successive generations of organisms in a single population, the members of an entire species during an interval of geological time, or group of related species descending from a common ancestor

Front 3

Natural Selection

Back 3

is a mechanism that can lead to evolution, whereby differential survival or reproduction of individuals causes some genetic types to replace others

Front 4

Convergent Evolution

Back 4

the independent origin of a similar traits in seperate lineages

Front 5

Homologous

Back 5

characteristics are similar in two or more species because they are inherited by a common ancestor

Front 6

Synapomorhpy

Back 6

derived from a trait that is shared by a group of related species

Front 7

Phylogeny

Back 7

a visual representation of evolutionary history of populations, genes, or species

Front 8

Mutation

Back 8

any change to the genomic sequences of an organism

Front 9

Reassortment

Back 9

occurs when genetic material from different strains gets mixed into new combinations with a single individual

Front 10

Genetic drift

Back 10

is evolution arising from random changes in the genetic composition of a population from one generation to the next

Front 11

Phenotypes

Back 11

are measurable aspects of an organism, such as morphology , physiology, and behavior. Genes interact with other genes and also with the environment during the development of the phenotype