Fitness and selection
Being able to survive and reproduce
What is fitness?
This occurs because traits are often heritable and organisms compete to survive
What is natural selection?
When alleles are transferred between populations due to immigration
What is gene flow?
The first details relatedness, but the second also incorporates time
What are cladograms and phylogenetic trees?
This is required to have two different species
What is reproductive isolation?
The capacity of an organism to pass on its DNA to its progeny, and that progeny to pass its DNA on.
What is fitness.
When multiple niches are available and organisms evolve separately to fill those niches to avoid competition
What is adaptive radiation?
When a cataclysm occurs the remaining allele frequencies are different than they were before the event
What is bottleneck effect?
This represents speciation events and common ancestors
What is a node?
Female firefly doesn't recognize the mating light pattern of a different species of firefly.
What is an example of behavioral isolation?
An environmental factor that impacts whether an organism can survive and reproduce. ______________ pressure
What is selective pressure?
The two equations of HW equilibrium involve these terms and each of them mean . . .
What is p for dominant allele frequency, q for recessive alle frequency, p2 for homozygous dominant frequency, 2pq for heterozygous frequency, and q2 for homozygous recessive frequency?
When environments are similar they lead to the development of similar traits in two different lineages and the traits are called this
What is convergent evolution and analogous traits?
This lineage is the least closely related member of the clade
What is the outgroup/basal taxa?
The fur tree's pollen cannot physically attach to the pine tree's cone
What is an example of mechanical isolation?
When the extremes of a trait are both equally selected for, this occurs
What is disruptive selection?
If 30 out of 50 individuals have the dominant trait, how many are homozygous dominant assuming HW equilibrium?
7
These structures exist between organisms who share those types of ancestors
What are homologous traits and common ancestors?
The best and most reliable way to show relatedness between species
What is DNA (molecular similarities)
This keeps horses and donkeys from being considered the same species
What is hybrid sterility?