Adaptation and Natural Selection Flashcards
Segregation
alternative alleles for the same gene segregate independently
Independent Assortment
genes located on different (non-homologous) chromosomes assort independently of each other
Dihybrid Ratio
9:3:3:1
Geneotype = phenotype?
FALSE!
Genes retain _____ through inheritance
identity
genes mutate to form…
alternative alleles
evolution is a ______ process
populational
mutation rates are _______ to effect evolutionary change
too low
evolution by natural selection requires…
1) variation in some attributes/traits
2) relationship between trait and survival
3) inheritance
What are the 5 theories included within Charles Darwin’s theory of evolution?
1) evolution as such
2) common descent
3) gradualness
4) populational speciation
5) natural selection
Evolution by natural selection produces…
- shifts in population means of the trait value, within a generation
- changes trait frequencies between generations
Evolution by natural selection and origin of species
ecological speciation