Study GUide chapter 13 #2 Flashcards
population
group of individals of sma epseices
individual
natural selection acts on
population
what actually evolves
gene pool
all allales in all individuals in population
microevolution
change in relative frequencies of alleles in gene pool
muation and sexual reproduction
causes of variation
genetic
portion of variation relevant to natrual selection
mutation
produce new alleles
somatic cells
where most mutations occur
mutatiosn in gametes
mutatiosn tha taffect population’s variability
most mutations
harmful
duplciation mutation
importnat source f helpful variation
prokaryotes
organisms in which mutation alone generate most variation
1/100,000
mutation rate in most plants and animals
sexual repdocution
generates most new gene combinations in anaimsla dna plants