Kate Kerr
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Biology Evolution info

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Kate Kerr
Created by Kate Kerr about 9 years ago
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Evolution winter bio

Evolution winter bio

Question 1 of 21

1

All the individuals of the same species in a given area at the same period of time

Select one of the following:

  • Population

  • Fitness

  • Genetic variation

Explanation

Question 2 of 21

1

If two groups are too far apart to intermingle, they are separate populations

Select one of the following:

  • True
  • False

Explanation

Question 3 of 21

1

Change over time in the relative frequencies of allele variations in a population

Select one or more of the following:

  • Genetic variation

  • Evolution

  • Population

Explanation

Question 4 of 21

1

Genetic variation is

Select one or more of the following:

  • 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

Explanation

Question 5 of 21

1

Select all that apply. Fitness is a measure of________

Select one or more of the following:

  • Reproductive success contributed to the next generation

  • Compared to others in the same population and generation cohort

  • The genetic change in a population

Explanation

Question 6 of 21

1

The source of new alleles because of spelling changes in DNA

Select one or more of the following:

  • Mutation

  • Migration

  • Natural selection

Explanation

Question 7 of 21

1

Natural selection and genetic drift cause evolutionary change because______ (select all that apply)

Select one or more of the following:

  • 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

Explanation

Question 8 of 21

1

A mechanism of evolution that causes a change in the allele frequencies of a population because of chance events not based on genetic traits

Select one or more of the following:

  • Migration

  • Genetic drift

  • Natural selection

Explanation

Question 9 of 21

1

A mechanism of evolution in which new alleles are added to a population when new individuals enter from another location

Select one or more of the following:

  • Migration

  • Genetic drift

  • Natural selection

Explanation

Question 10 of 21

1

Individuals that survive or reproduce at a higher rate because of their genetic traits defines __________ (select all that apply)

Select one or more of the following:

  • Natural selection

  • One of the mechanisms of evolution

  • Gene fixation

Explanation

Question 11 of 21

1

Genetic drift is any condition that favors some alleles/traits for reproductive success and disfavor others alleles/traits.

Select one of the following:

  • True
  • False

Explanation

Question 12 of 21

1

Genetic drift has the biggest impact on small populations

Select one of the following:

  • True
  • False

Explanation

Question 13 of 21

1

Founder effect is where a small number of individuals establish a new population

Select one of the following:

  • True
  • False

Explanation

Question 14 of 21

1

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)

Select one or more of the following:

  • Genetic drift

  • Migration

  • Founder effect

  • Bottleneck

Explanation

Question 15 of 21

1

Bottlenecks are a type of genetic drift that occurs because of a loss of a large percentage of population

Select one of the following:

  • True
  • False

Explanation

Question 16 of 21

1

Mechanisms for genetic change are_______

Select one or more of the following:

  • Natural selection

  • Genetic drift

  • Mutation

  • Migration

Explanation

Question 17 of 21

1

If there are different alleles for at least some of the population's genes, then there is genetic variation

Select one of the following:

  • True
  • False

Explanation

Question 18 of 21

1

Genetic variation is rare

Select one of the following:

  • True
  • False

Explanation

Question 19 of 21

1

To be considered a population biologically, which of the following must be true (select one or more)

Select one or more of the following:

  • Belong to the same species

  • Be in the same breeding area

  • Be alive during the same period in time

Explanation

Question 20 of 21

1

If an allele becomes the only form of the gene present on a population, then it is 'fixed'

Select one of the following:

  • True
  • False

Explanation

Question 21 of 21

1

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

Select one of the following:

  • True
  • False

Explanation

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