16 terms

Apex Learning Biology Semester 2 unit 3.2

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Allele Frequency
The number of copies of a specific version of a gene divided by the number of copies of all versions of that gene. This number can be used to show the amount of biological diversity in an individual, a population, or a species.
Birthrate
The number of births per 1,000 individuals in a population each year.
Carrying capacity
The maximum population size that can be supported over time by a given environment.
Competiton
An interaction between groups of organisms. Each group tries to gain access to a resource that is low in quantity, such as food, mates, or shelter.
Death Rate
The number of deaths per 1,000 individuals in a population each year.
Density dependent
A factor that has more of an effect when there are more members of a population
Density Independent
A factor that is not afflected by increasing population.
Emigration
The act of leaving one country or place to live in another.
Exponential Growth
Growth that occurs in an ideal environment, where the population size of an organism increases at a constant rate.
Gene Pool
All of the alleles in a population
Hardy-Weinber equation
p^2+2pq+q^2=1, where p is the dominant allele frequency, q is the recessive allele frequency and p+q=1.
Hardy_Weinberg equilibrium
The state of a population in which allele frequencies do not change over time. This would be a non-evolving population.
immigration
The act of entering one country or place, from another to live.
Logistical Growth
The standard model of population growth in which a population exponentially increases until it levels off at its carrying capacity.
Phenotype Frequency
The percentage a physical trait appears in a population.
Population genetics
The study of how populations' genes are passed down from generation to generation.
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