This is the frequency-dependent selection or any other mode of natural selection that gives rise to this.
What is a balanced polymorphism.
100
This is the increase or decrease in allele frequencies due to the impact of the environment.
What is natural selection.
100
This type of selection eliminates individuals that have extreme or unusual traits.
What is stabilizing selection.
100
The formation of new species
What is speciation?
100
occurs when species do not encounter one another
What is habitat isolation
200
Name two processes in meiosis that contribute to genetic variation.
What is independent assortment of homologues and the random joining of genes.
200
This introduces new alleles that may provide a selective advantage.
What is a mutation.
200
What type of selection favors traits that are at one extreme of a range of traits.
What is a directional selection.
200
Speciation due to geographic barrier
What is allopatric speciation
200
Temporal isolation
what type of isolation occurs when species mate or flower during different seasons or at different times of the day
300
These two processes in meiosis contribute to genetic variation.
What is crossing over and random joining of gametes.
300
This is a movement of individuals between populations.
What is gene flow.
300
This is the movement of individuals between populations.
What is gene flow.
300
parapatric speciation is the speciation of population from different areas along a common border, sympatric speciation occurs in the absence of physical barrier
What is difference between sympatric speciation and parapatric speciation
300
when hybrids produce offspring that have reduced viability or fertility
when does hybrid breakdown happen?
400
Divergence in a population leads to what type of speciation?
What is sympatric speciation.
400
This is the increase or decrease in allele frequencies due to the impact of the environment.
What is natural selection.
400
This type of selection is the differential mating of males in a population.
What is sexual selection.
400
a burst of genetic divergences from a lineage give rises to many new species
What is adaptive radiation
400
when the zygote fails to develop properly and aborts, or dies, before reaching reproductive maturity
what is hybrid inviability
500
What is the initiating event for allopathic speciation.
What is a physical barrier.
500
This is a random increase or decrease of alleles.
What is genetic drift.
500
What types of selection is a form of directional selection carried out by humans when they breed animals that possess desirable traits.
What is artificial selection.
500
it arises when abnormal nuclear division during meiosis or mitosis doubles the chromosome number
how does polyploidy occur
500
when male and female genitalia are structurally incompatible or when flower structure select for different pollinators