Evolution by natural selection
Genetic drift
Sexual selection
Migration
Combined category
100
The ability to produce more surviving offspring than other individuals in a population.
What is fitness
100
in what kind of population is random genetic drift most pronounced?
What is small populations.
100
mating between relatives.
What is inbreeding.
100
the movement of alleles from one population to another.
What is gene flow.
100
The splitting of one species to form two or more species that are reproductively isolated from one another.
What is speciation?
200
similarity in embryo form and/or pattern of tissue differentiation.
What is developmental homology.
200
In genetics, the removal of all alleles within a population at a particular genetic locus except one. The allele that remains has a frequency of 100 percent.
What is fixation.
200
the decreased fitness that occurs when population homozygosity increases,
What is inbreeding depression.
200
The proportion (percentage) of a particular allele in a population.
What is allele frequency?
200
A type of natural selection in which individuals with one extreme of an inherited characteristic have an advantage over other individuals in the population, as when large individuals produce more offspring than do small and medium-sized individuals.
What is directional selection.
300
Species change over time, and those that exist today descended from other, preexisting species.
What is "descent with modification."
300
a sudden reduction in the number of alleles in a population, associated with a sudden decrease in population size.
What is genetic bottleneck.
300
occurs when individuals in a population vary in heritable traits that affect their ability to attract mates.
What is sexual selection
300
the number and relative frequency of alleles in a population.
What is genetic variance?
300
traits that differ between the sexes, but are not related to reproduction.
What is secondary sexual traits.
400
Individuals of the same species living in the same area at the same time.
What is population.
400
change in allele frequencies due to chance.
What is genetic drift.
400
male-female differences that can be observed in many species.
What is sexual dimorphism.
400
movement of individuals into a population, resulting in allele frequencies change within that population.
What is immigration?
400
The idea that a species is defined as a group of populations that can interbreed but are reproductively isolated from other such groups.
What is biological species concept.
500
Heritable traits that increase an individual's fitness relative to individuals lacking that trait.
What is adaptation.
500
is especially common in the colonization of isolated habitats such as islands, mountains, caves, and ponds.
What is founder effect.
500
the ability to get resources for producing eggs and rearing young.
What is limits to female fitness.
500
The sum of all the genetic information carried by all the individuals in a population.
What is gene pool?
500
The physical separation of populations from one another by a barrier such as a mountain chain or a river.
What is geographic isolation.
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