genetic diversity Flashcards
what is the fidelity for DNA replication in humans
1 error for every 3x10^9 base pairs coded
what is the name for an error in DNA replication
a mutation
what is the error rate in bacteria
one error for every 1x10^15 base pairs coded
define species
group of organisms with similar characteristic that can successfully breed to form fertile offspring
define population
all of the members if the same species that live in a certain area that can interact/breed with each other
define gene pool
collection of all alleles in a population
define gene
section of DNA that codes for a protein
define allele
variation/different version of a gene due to mutations
found at the same place on a chromosome
define genetic diversity
diversity of alleles within a gene pool
define allele frequency
frequency of a specific allele in a gene pool
define natural selection
the extremes of the variation in phenotype for a characteristic are lost over time
causing changes in allele frequencies in a population
what is directional selection
when a change in environment causes selection pressure
one side of normal distribution will be reduced
