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Natural Selection
ggenetic variation
Genetic Variation
cjbdkfciddffhbdkdMechanisms of evolution.
100
A type of distribution in which frequency is highest near the mean value and decreases toward each extreme end of the range.
What is normal distribution.
100
The combined alleles of all of the individuals in a population.
What is gene pool.
100
The movement of alleles from one population to another.
What is gene flow?
200
The observable change of allele frequencies of a population over time.
What is microevolution.
200
A measurement of how common a certain allele is in the population.
What is allele frequency.
200
A change in allele frequency due to chance.
What is genetic drift?
300
A shift in the population's phenotypic distribution.
What is directional selection.
300
What are the two main sources of Genetic Variation?
What are mutation and recombination.
300
The effect of a destructive event that leaves only a few survivors in a populations.
What is the bottleneck effect?
400
the intermediate phenotype is favored and becomes more common in the population.
What is stabilizing selection.
400
A trait produced by one or more genes.
What is a phenotype?
400
Genetic drift that occurs after a small number of individuals colonize into a new area.
What is founder effect?
500
Feather color in male bird species in North America, a wide variety of brightness in their feathers, ranging from dull brown to bright blue. Dominant adult males are those with the brightest blue feathers on their heads and backs. Birds with brighter colors have higher chance of courtship.
What is an example of disruptive selection?
500
populations must have this in order to have different phenotypes.
What is genetic variation.
500
A problem in the population's genetic variation.
What is the effect(s) of genetic drift?