populations Flashcards
define species
a group of organisms that can interbreed to produce fertile offspring
define population
all the organisms of a particular species that live in the same place
define gene pool
the range of alleles existing for a particular gene locus within a population
define allele frequency
proportion of a certain allele within a gene pool, expressed as a percentage.
what is the Hardy-Weinberg principle
allows us to estimate the frequency of alleles in populations, as well as if allele frequency is changing over time
Give the assumptions made by the Hardy-Weinberg principle
-no mutations
-no migration in or out of population
-no selection
-random mating
-large population
define community
all the species that live in one area and interact with one another and their environment