5 10 15 20 25 types of selection hardy weinberg speciation prezygotic vs. postzygotic grab bag 5 10...
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Types of Selection
HardyWeinberg
SpeciationPrezygotic vs.
PostzygoticGrab Bag
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This is the only force creating genetic variation that consistently
selects for adaptive traits.
What is Natural Selection?
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This is the type of selection that usually selects for
individuals with the average form of a trait.
What is stabilizing selection?
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This is the type of selection that tends to eliminate one extreme in a
range of phenotypes.
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What is directional selection?
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This is the type of selection that may eliminate
intermediate phenotypes.
What is disruptive selection?
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The noticeable difference between male mallard ducks and female mallard ducks indicates that this type of
selection is important to this species.
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What is sexual selection?
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A conditional requirement in maintaining Hardy-Weinberg Genetic equilibrium is that
non of these can occur during the copying of DNA.
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What are mutations?
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This is the movement of individuals into a population; and it can disrupt
Hardy-Weinberg equilibrium.
What is immigration?
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This random change in the frequency of alleles has the
greatest impact on small populations.
What is a genetic drift?
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This is the movement of genes from one population to another and it can
effect genetic equilibrium.
What is gene flow?
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A female frog choosing a mate with the loudest “croak” is a violation of this conditional requirement for Hardy-
Weinberg equilibrium.
What is random mating?
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This type of speciation occurs as a result of the geographic isolation of
two populations.
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What is allopatric speciation?
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This type of speciation occurs as a result of the reproductive isolation of
two populations.
What is sympatric speciation?
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This term describes the idea that species have evolved slowly over
time.
What is gradualism?
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This is the biological definition of a species.
What are members of a population that can mate and produce viable
and fertile offspring?
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This term describes the idea that species evolve at an irregular rate;
i.e. short and rapid bursts.
What is punctuated equilibrium?
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What is prezygotic isolation?
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The mating seasons of two types of skunks occur during different seasons.
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Offspring of two individuals of interbreeding species die
early.
What is postzygotic isolation?
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A mule, a hybrid produced from a horse and a donkey is sterile and cannot produce
offspring of his own.
What is the postzygotic isolation?
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Two species of birds have different courtship rituals.
What is prezygotic isolation?
2020
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Sperm cells from one sponge species cannot fertilize the eggs from
another.
What is prezygotic isolation?
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The study of evolution from a genetic point of view is known by
this name.
What is population Genetics?
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These are alternative versions of a gene.
What are alleles?
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This is the total genetic information available in a
population.
What is the gene pool?
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The population of California condors is currently rebounding
from 12 individuals. The population will be genetically
similar as a result of this.
What is the bottle neck effect?
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These are the first names of Hardy and Weinberg.
What is Godfrey Hardy and Wilhelm Weinberg?
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