A) nonrandom mating. B) allele frequency. C) genetic drift. D) mutation. A) nonrandom mating. B) allele frequency. C) genetic drift. D) mutation.

Exam 11: Mechanisms of Evolution

A friend states,"Exposing bacteria to antibiotics causes the cells to mutate to become antibiotic resistant." Explain to your friend why he is incorrect and provide the correct explanation.

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Question 1

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This statement is false.Mutations occur randomly;some bacteria had already mutated to be antibiotic resistant prior to exposure to the antibiotics.These resistant bacteria survive when antibiotics are present while the rest of the population is killed.The resistant bacteria then reproduce to form a population of resistant cells.

Two different species may have similar features because of

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Question 2

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Convergent evolution occurs when natural selection causes distantly related organisms to

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Question 3

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A mutation in a gene produces the identical protein to the original gene and therefore,an identical trait.Will evolution act upon this mutation?

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Question 4

Which of the following is an example of gene flow?

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Question 5

In natural selection,________ that increase survival and reproductive success become more common in a population.

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Question 6

Two unrelated species evolving to look more similar due to environmental pressures is called

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Question 7

A population of 8,250 mice occupies the sand dunes in a coastal area.A severe hurricane washes out several miles of sand dunes.As a result,only 50 mice remain.The population has experienced

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Question 8

UV light causes mutations within skin cells.Is UV light a major driving force in the evolution of animals?

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Question 9

What is the total number of alleles present for any given gene in a population of 100 individuals?

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Question 10

New alleles arise by

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Question 11

Which of the following is NOT likely to be a cause of rapid evolution in a population?

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Question 12

In the following figure,the flying bird moves permanently into the population shown on land.As a result,the allele frequency of A in the population changes from

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Question 13

How do natural selection and sexual selection differ?

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Question 14

Some finches on the Galápagos Islands eat insects,an unusual food for finches to eat.These finches

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Question 15

While on a camping trip,you collect a white tadpole from a pond and take it home.The tadpole develops into a white bullfrog.When the frog gets too big,you release it into a local pond.The next year,several white bullfrogs are observed in the pond.This is an example of

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Question 16

Two populations of geese live near each other.As time passes,the populations are becoming more genetically alike.This is probably due to ________.

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Question 17

Which of the following statements concerning evolution is FALSE?

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Question 18

Genetic variation is based on

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Question 19

The original source of genetic variation within a population is ________.

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Question 20

Showing 1 - 20 of 64

A friend states,"Exposing bacteria to antibiotics causes the cells to mutate to become antibiotic resistant." Explain to your friend why he is incorrect and provide the correct explanation.

Two different species may have similar features because of

Convergent evolution occurs when natural selection causes distantly related organisms to

A mutation in a gene produces the identical protein to the original gene and therefore,an identical trait.Will evolution act upon this mutation?

Which of the following is an example of gene flow?

In natural selection,________ that increase survival and reproductive success become more common in a population.

Two unrelated species evolving to look more similar due to environmental pressures is called

A population of 8,250 mice occupies the sand dunes in a coastal area.A severe hurricane washes out several miles of sand dunes.As a result,only 50 mice remain.The population has experienced

UV light causes mutations within skin cells.Is UV light a major driving force in the evolution of animals?

What is the total number of alleles present for any given gene in a population of 100 individuals?

New alleles arise by

Which of the following is NOT likely to be a cause of rapid evolution in a population?

In the following figure,the flying bird moves permanently into the population shown on land.As a result,the allele frequency of A in the population changes from

How do natural selection and sexual selection differ?

Some finches on the Galápagos Islands eat insects,an unusual food for finches to eat.These finches

While on a camping trip,you collect a white tadpole from a pond and take it home.The tadpole develops into a white bullfrog.When the frog gets too big,you release it into a local pond.The next year,several white bullfrogs are observed in the pond.This is an example of

Two populations of geese live near each other.As time passes,the populations are becoming more genetically alike.This is probably due to ________.

Which of the following statements concerning evolution is FALSE?

Genetic variation is based on

The original source of genetic variation within a population is ________.

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Ecosystems

Applying the Science

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