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