MECHANISMS OF EVOLUTION Flashcards
states that all living things have a common ancestor
theory of evolution
acts to encourage traits and behaviors that increase the likelihood of an organism’s chance for survival and reproduction
natural selection
micro vs macro evolution
small scale vs large scale
study of genetic composition of populations
population genetics
rate of which a specific allele appears within a population
allele frequency
the force that we can attribute novel traits and behaviors that act upon and modify a species
mutaiton
allele frequency can change randomly with no advantage to the population
genetic drift
an event that initiates change in allele frequency in a population that is not typical of the original populaiton
founder effect
the allele and genotype frequency of a population will remain constant from generation to generation unless there is a presence of disturbing factors
hardy weinberg principle of equib
the formula for hardy weinberg principle of equib
P^2 + 2pq + q^2 = 1
mechanisms of evolution
genetic drift
gene flow
mutation
nonrandom mating
artificial selection
recombination
natural selection
observation that some individuals in a populaiton ae more likely to survive longer and have more offspring than others, thus passing genes to the next generation
genetic drift
natural disasters that kill at random a large portion of the population that can magnify genetic drift
bottleneck effect
the flow of alleles in and out of a population due to the migration of individuals or gametes
geneflow
changes that occur in the DNA that enables organisms to change overtimes
mutation
