Test
Evolution winter bio
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Preguntas del test (21)
1All the individuals of the same species in a given area at the same period of time
- APopulation
- BFitness
- CGenetic variation
2If two groups are too far apart to intermingle, they are separate populations
- AVerdadero
- BFalso
3Change over time in the relative frequencies of allele variations in a population
- AGenetic variation
- BEvolution
- CPopulation
4Genetic variation is
- AChange over time in the relative frequencies of allele variations
- BWhen there are different alleles for at least some of the population's genes
- CAll the individuals in a given area
5Select all that apply. Fitness is a measure of________
- AReproductive success contributed to the next generation
- BCompared to others in the same population and generation cohort
- CThe genetic change in a population
6The source of new alleles because of spelling changes in DNA
- AMutation
- BMigration
- CNatural selection
7Natural selection and genetic drift cause evolutionary change because______ (select all that apply)
- ASome alleles become more common in the next generation
- BSome alleles become less common in the next generation
- CIt is all about differential reproductive success
8A mechanism of evolution that causes a change in the allele frequencies of a population because of chance events not based on genetic traits
- AMigration
- BGenetic drift
- CNatural selection
9A mechanism of evolution in which new alleles are added to a population when new individuals enter from another location
- AMigration
- BGenetic drift
- CNatural selection
10Individuals that survive or reproduce at a higher rate because of their genetic traits defines __________ (select all that apply)
- ANatural selection
- BOne of the mechanisms of evolution
- CGene fixation
11Genetic drift is any condition that favors some alleles/traits for reproductive success and disfavor others alleles/traits.
- AVerdadero
- BFalso
12Genetic drift has the biggest impact on small populations
- AVerdadero
- BFalso
13Founder effect is where a small number of individuals establish a new population
- AVerdadero
- BFalso
14The 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)
- AGenetic drift
- BMigration
- CFounder effect
- DBottleneck
15Bottlenecks are a type of genetic drift that occurs because of a loss of a large percentage of population
- AVerdadero
- BFalso
16Mechanisms for genetic change are_______
- ANatural selection
- BGenetic drift
- CMutation
- DMigration
17If there are different alleles for at least some of the population's genes, then there is genetic variation
- AVerdadero
- BFalso
18Genetic variation is rare
- AVerdadero
- BFalso
19To be considered a population biologically, which of the following must be true (select one or more)
- ABelong to the same species
- BBe in the same breeding area
- CBe alive during the same period in time
20If an allele becomes the only form of the gene present on a population, then it is 'fixed'
- AVerdadero
- BFalso
21The genetic diversity of a 'founder' population introduced on a small island would be expected to be less than the genetic diversity on the mainland
- AVerdadero
- BFalso
Información
- Descripción
- Biology Evolution info
- Autor
- Kate Kerr
- Idioma
- English
- Visitas
- 97
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test