frequency of an individual phenotype in a population. with a particular phenotype
Hardy-Wenberg genetic equilibrium
allele frequency in a population remain the same generation to gene ration
Length,weight, and many other quantitive traits in a population tend to show variation that, when plotted on a graph looks like.
a bell curve
If a population of four o'clock flowers consists of five RR plants(red flowers, two Rr plants(pink flower), and one rr plant9white flowers, the phenotype frequency of plants with pink flowers is.
immigration= movement of individuals into a population.
emigration- individuals out of a population
gene flow,genetic drift
gene flow= movement of genes form one population to another.
Genetic drift= strongly felt in small populations. A random change in allele frequency.
random mating, assortative mating
random mating=occurs without regard to genetic make up.
assortative= mating based on similar characteristics
stabilizing selection,directional selection
stabilizing selection=individuals average traits best fit.
directional selections=one extreme or the other extreme is selected for. Has highest fitness.
one limitation of the morphological species concept is that
there can be morphological diffrences among individuals in a single population
according to the biological species concept, a species is a population of organisms that
can successfully interbreed but cannot breed with other groups
fish populations that do not not interbreed because the live in diffrent ponds may evolve into separate species due to
a pattern of rapid evolutionary changes followed by long periods of no change is described as
interna and external structures and the apperance of organisms. used to classaify organisms.
pattern of species formatin in which periods of speciation are presede and followed by log periond little of no specifation