Unit 1 Quiz 5
13 Questions
| Total Attempts: 46
Settings
Microevolution
Questions and Answers
- 1._________ __________ accounts for more changes in allele frequencies than any other evolutionary process.
- 2.The three models of natural selection are:
- A.
Polar
- B.
Directional
- C.
Cohesive
- D.
Stabilizing
- E.
Disruptive
- 3.What model of natural selection results in dimorphism or polymorphism?
- A.
Directional Selection
- B.
Stabilizing Selection
- C.
Disruptive Selection
- 4.Which form often occurs due to environmental change?
- A.
Directional
- B.
Stabilizing
- C.
Disruptive
- 5.What is a graded series of changes in some characteristics correlated with gradual change in an environmental factor over the geographic range of a species.
- A.
Clade
- B.
Cline
- C.
Clone
- D.
Clande
- 6.Hardy-Weinberg ____________ is used to predict _________ changes in a population over time.
- 7.List the 5 agents of Hardy Weinberg Equilibrium.
- 8.______ __________ is the addition or removal of alleles from a population when an individual enters or leaves a population.
- 9.During non-random mating __________ __________ occurs which means due to differences in appearances (like feather color) females will select the most fit mate.
- 10._________ is a severe form of non-random mating that typically occurs in small populations. It results in increased occurence of ________ recessive individuals.
- 11.When genetic drift occurs:
- A.
Beneficial alleles thrive
- B.
Harmful alleles survive
- C.
Beneficial alleles may be eliminated
- D.
Beneficial alleles are stabilized.
- 12.What is it called when a small number of individuals leave a population and establish a new isolated population. Therefore, the smaller number of individuals can't contain all the genetic diversity and the population becomes much different than the parent population.
- A.
Mutation
- B.
Non-Random Mating
- C.
Sympleisomorphy
- D.
Founder Effect
- 13.A severe and sudden reduction in population size (natural disasters, habitat loss) is called __________ __________, and results in random alteration of allele frequencies.
Back to top