1982042
Question 1
Question
All the individuals of the same species in a given area at the same period of time
Answer
-
Population
-
Fitness
-
Genetic variation
Question 2
Question
If two groups are too far apart to intermingle, they are separate populations
Answer
- True
- False
Question 3
Question
Change over time in the relative frequencies of allele variations in a population
Answer
-
Genetic variation
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Evolution
-
Population
Question 4
Question
Genetic variation is
Answer
-
Change over time in the relative frequencies of allele variations
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When there are different alleles for at least some of the population's genes
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All the individuals in a given area
Question 5
Question
Select all that apply. Fitness is a measure of________
Answer
-
Reproductive success contributed to the next generation
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Compared to others in the same population and generation cohort
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The genetic change in a population
Question 6
Question
The source of new alleles because of spelling changes in DNA
Answer
-
Mutation
-
Migration
-
Natural selection
Question 7
Question
Natural selection and genetic drift cause evolutionary change because______ (select all that apply)
Answer
-
Some alleles become more common in the next generation
-
Some alleles become less common in the next generation
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It is all about differential reproductive success
Question 8
Question
A mechanism of evolution that causes a change in the allele frequencies of a population because of chance events not based on genetic traits
Answer
-
Migration
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Genetic drift
-
Natural selection
Question 9
Question
A mechanism of evolution in which new alleles are added to a population when new individuals enter from another location
Answer
-
Migration
-
Genetic drift
-
Natural selection
Question 10
Question
Individuals that survive or reproduce at a higher rate because of their genetic traits defines __________ (select all that apply)
Answer
-
Natural selection
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One of the mechanisms of evolution
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Gene fixation
Question 11
Question
Genetic drift is any condition that favors some alleles/traits for reproductive success and disfavor others alleles/traits.
Answer
- True
- False
Question 12
Question
Genetic drift has the biggest impact on small populations
Answer
- True
- False
Question 13
Question
Founder effect is where a small number of individuals establish a new population
Answer
- True
- False
Question 14
Question
The number of prairie chickens went from millions to fewer than 50, resulting in 30% of alleles being lost. This is an example of______. (Select all that apply)
Answer
-
Genetic drift
-
Migration
-
Founder effect
-
Bottleneck
Question 15
Question
Bottlenecks are a type of genetic drift that occurs because of a loss of a large percentage of population
Answer
- True
- False
Question 16
Question
Mechanisms for genetic change are_______
Answer
-
Natural selection
-
Genetic drift
-
Mutation
-
Migration
Question 17
Question
If there are different alleles for at least some of the population's genes, then there is genetic variation
Answer
- True
- False
Question 18
Question
Genetic variation is rare
Answer
- True
- False
Question 19
Question
To be considered a population biologically, which of the following must be true (select one or more)
Answer
-
Belong to the same species
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Be in the same breeding area
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Be alive during the same period in time
Question 20
Question
If an allele becomes the only form of the gene present on a population, then it is 'fixed'
Answer
- True
- False
Question 21
Question
The genetic diversity of a 'founder' population introduced on a small island would be expected to be less than the genetic diversity on the mainland
Answer
- True
- False
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