Population Genetics
Causes of Microevolution
Genetic Variation
Natural Selection
Misc.
100
Describes an allele in which all population members are all homozygous for that allele.
What is a fixed allele?
100
Describes the generation to generation change in a population's allele frequencies.
What is microevolution?
100
Differences in genotypes and phenotypes within and between populations.
What is genetic variation?
100
The cause of adaptive evolution.
What is natural selection?
100
The comprehensive theory of evolution.
What is modern synthesis?
200
A theoretical state in which a population's gene pool remains constant.
What is Hardy-Weinberg Equilibrium?
200
Genetic exchange due to migration of fertilized individuals and/or gametes between populations.
What is gene flow?
200
Any range of phenotype.
ex: height or weight
What is a quantitative characteristic?
200
Selection bell curve in which evolution favors both extreme phenotypes, but not the average.
What is diversifying selection?
200
Given 10 gametes, 3 are dominant allele. The recessive allele frequency is...
What is 70%?
300
1. Population must be large
2. No migration
3. No net mutations
4. Random mating
5. No natural selection
What are the Hardy-Weinburg requirements?
300
The two main causes of microevolution.
What is genetic drift and natural selection?
300
The two ways to measure genetic variation.
What is gene and nucleotide diversity?
300
Bell curve change where the middle phenotype becomes even more predominant in the population.
What is stabilizing selection?
300
The genotype's contribution to the next generation compared to other genotypes.
What is relative fitness?
400
Given the the dominant allele frequency is 0.75. The homozygous dominant phenotype of the next generation is this...
What is 0.5625?
400
Genetic drift due to drastic population size reduction.
What is the bottleneck effect?
400
The type of mutation that affects the offspring of a population.
What is gamete mutation?
400
The reason that sexual reproduction persists, even though it is less efficient than asexual reproduction.
What is variation in a population?
400
Two or more distinct forms of discrete characters (morphs) are high frequencies to be noticed.
ex: blood type
What is polymorphism?
500
Out of a population of 100 individuals, if there are 49 individuals that have the recessive phenotype, then this many are heterozygous...
What are 42 individuals?
500
Genetic drift due to colonization of isolated areas by a few individuals.
What is the founder effect?
500
The state in which recessive alleles are maintained in a population due to this.
What is diploidy?
500
What is this photo an example of?
Sexual dimorphism and sexual selection
500
In a population of 500 individuals, when 320 individuals show the dominant phenotype, this many are homozygous dominant...
What are 80 individuals?