Chapter 16 Quiz:  2003

 

1.      What is defined as a change in population through time?

A)    Evolution

B)    Population bottleneck

C)    Gene pool

D)    Generation

 

2.      A gene pool consists of all the genes of

A)    A foreign population

B)    A local population

C)    Fish

D)    A certain ecosystem

 

3.      Assumptions of the Hardy-Weinberg Model include:

A)    The organism is diploid

B)    Generations are nonoverlapping

C)    Population size is very large

D)    All of the above

 

4.      The two sources of genetic variation are

A)    Mutation only

B)    Reproduction and migration

C)    Mutation and crossing-over

D)    Stability and crossing-over

 

5.      What is the main factor that changes the gene pools of large populations?

A)    Populations bottleneck

B)    Natural selection

C)    Founder effect

D)    Inbreeding

 

  1. How long ago did Earth form?

A)    15 billion years ago

B)    800 million years ago

C)    20 billion years ago

D)    4.6 billion years ago

 

  1. What did Miller’s apparatus simulate?

A)    The effect of radioactive isotopes

B)    The Big Bang

C)    Early Earth conditions

D)    Deep-sea vents

 

  1. Which of these steps was NOT a part of the Heterotroph Hypothesis?

A)    Supply of organic molecules created by nonbiological processes

B)    Molecules were assembled into polymers

C)    Polymers must attach to form living organisms

D)    Polymers must be able to replicate themselves using organic molecules

 

  1. What is the primary source of heat inside Earth?

A)    Interactive Isotopes

B)    Fire

C)    Lava

D)    Radioactive Isotopes

 

  1. How evidence exists that space had a role in the Heterotroph Hypothesis?

A)    Deep-sea vents

B)    Murchison meteorite

C)    Clay particles

D)    Doppler Effect

 

  1. What is population genetics?

A)    The field of biology that studies microevolution

B)    The field of biology that studies all the DNA sequences of a local population

C)    The field of biology that studies fish

D)    The field of biology that separates the kingdoms

 

  1. When a population is polymorphic, it has…

A)    Two or more alleles are present in a gene pool

B)    Two or more chromosomes

C)    One allele is present in the gene pool

D)    One chromosome exists

 

  1. The ultimate source of variation is…

A)    Environments

B)    Evolution

C)    Mutation

D)    None of the above

 

  1. For the Hardy Weinberg Model to work,

A)    The organism must be haploid

B)    The population size should be large

C)    Reproduction must not be sexual

D)    All of the above

 

  1. Genetic drift affect gene pools in which way?

A)    Increase allele frequency

B)    Change the gene pool because of migration between populations

C)    Direct conversion of one allele to another

D)    Cause random changes in small populations

 

 

 

Answer Key:

1.      A

2.      B

3.      D

4.      C

5.      B

6.      D

7.      C

8.      C

9.      D

10.  B

11.  A

12.  A

13.  C

14.  B

15.  D