Exam 4 Flashcards
Tautology
The saying of the same thing twice in different words
Natural Selection
Differential survival and reproduction of individuals with heritable traits
Inbreeding Coefficient F
Used to gauge the strength of inbreeding. Used in allele freq equation
Balance model
Genetic diversity low, balancing selection, fitness of heterozygotes is greater than fitness of homozygotes
fixation
When a population selects for one specific trait, keeping it a specific way.
Fisher’s Fundamental Theorem of Natural Selection
Natural Selection maxes W-bar
The modern Synthesis
Evolution is gradual via small genetic changes that accumulate
Natural selection is the strongest mechanism for evolution
Genetic diversity reflects past and current selection
Microevolutionary change leads to macroevolutionary change
Stabilizing selection
Same mean, variance decrease
Directional Selection
Mean increase, same variance
Disruptive selection
Same mean, variance increase
ecotype
a distinct form or race of a plant or animal species occupying a particular habitat. (galarian form)
Effective population size
Equivalent numbers of individuals in a purely randomly mating population
Peppered moth natural selection
The peppered moth is an example of natural selection as certain patterns thrived in areas depending on the brightness of their forests
Autozygous alleles
two alleles from one individual
Allozygous alleles
Two alleles from two individuals
