Question 1

Which statement describes a correlation between two variables?

Accepted Answer

A)  Correlated variables strongly imply their change is caused by a third,perhaps unknown,variable. 
B)  Correlated variables are dependent;how they change is predicted by change in a third unknown variable. 
C)  Correlated variables are interdependent;as one varies so does the other in a predictable fashion. 
D)  Correlated variables are independent;how one varies does not have an effect on how the other varies. 
E)  Correlated variables demonstrate causality;change in the independent variable directs change in the dependent variable. 
A)  Correlated variables strongly imply their change is caused by a third,perhaps unknown,variable. 
B)  Correlated variables are dependent;how they change is predicted by change in a third unknown variable. 
C)  Correlated variables are interdependent;as one varies so does the other in a predictable fashion. 
D)  Correlated variables are independent;how one varies does not have an effect on how the other varies. 
E)  Correlated variables demonstrate causality;change in the independent variable directs change in the dependent variable.

Question 2

How do penicillin and similar antibiotics affect prokaryotic cells?

Accepted Answer

A)  These antibiotics interfere with the action of prokaryotic ribosomes which disrupts proper cell membrane formation,resulting in cell death. 
B)  These antibiotics disrupt the formation of the cell wall so it cannot counteract osmotic pressure in a hypotonic environment,resulting in cell lysis. 
C)  These antibiotics disrupt the formation of the cell wall so it cannot counteract osmotic pressure in a hypertonic environment,resulting in cell lysis. 
D)  These antibiotics disrupt the formation of the cell membrane so it cannot counteract osmotic pressure in a hypotonic environment,resulting in cell lysis. 
E)  These antibiotics interfere with the action of prokaryotic ribosomes so normal protein synthesis cannot occur,resulting in cell death. 
A)  These antibiotics interfere with the action of prokaryotic ribosomes which disrupts proper cell membrane formation,resulting in cell death. 
B)  These antibiotics disrupt the formation of the cell wall so it cannot counteract osmotic pressure in a hypotonic environment,resulting in cell lysis. 
C)  These antibiotics disrupt the formation of the cell wall so it cannot counteract osmotic pressure in a hypertonic environment,resulting in cell lysis. 
D)  These antibiotics disrupt the formation of the cell membrane so it cannot counteract osmotic pressure in a hypotonic environment,resulting in cell lysis. 
E)  These antibiotics interfere with the action of prokaryotic ribosomes so normal protein synthesis cannot occur,resulting in cell death.

Question 3

How might climate change affect global water supplies? Select the TWO answers that are correct.

Accepted Answer

A)  altering global distribution of rainfall 
B)  changing seismic activity of the crust 
C)  reducing rainfall everywhere around the globe 
D)  changing rainfall patterns that support highly populated areas 
E)  increasing rainfall everywhere around the globe 
A)  altering global distribution of rainfall 
B)  changing seismic activity of the crust 
C)  reducing rainfall everywhere around the globe 
D)  changing rainfall patterns that support highly populated areas 
E)  increasing rainfall everywhere around the globe

Question 4

Which statement describes a hydrogen bond between two water molecules?

Accepted Answer

A)  a weak bond in which the oxygen atom of one molecule takes an electron away from the hydrogen atom of another water molecule 
B)  a weak bond between the slightly negative oxygen atom of one water molecule and the slightly positive hydrogen atoms of another water molecule 
C)  a weak bond between the slightly positive oxygen atom of one water molecule and the slightly negative hydrogen atoms of another water molecule 
D)  a weak bond in which the oxygen atom of one molecule stably shares electrons with the hydrogen atom of another water molecule 
E)  a weak bond in which the oxygen atom of one molecule donates an electron to the hydrogen atom of another water molecule 
A)  a weak bond in which the oxygen atom of one molecule takes an electron away from the hydrogen atom of another water molecule 
B)  a weak bond between the slightly negative oxygen atom of one water molecule and the slightly positive hydrogen atoms of another water molecule 
C)  a weak bond between the slightly positive oxygen atom of one water molecule and the slightly negative hydrogen atoms of another water molecule 
D)  a weak bond in which the oxygen atom of one molecule stably shares electrons with the hydrogen atom of another water molecule 
E)  a weak bond in which the oxygen atom of one molecule donates an electron to the hydrogen atom of another water molecule

Question 5

What is the order of taxonomic classification from most general to most specific?

Accepted Answer

A)  genus,species,order,family,class,phylum,kingdom,domain 
B)  kingdom,domain,phylum,class,order,family,genus,species 
C)  species,genus,family,order,class,phylum,domain,kingdom 
D)  domain,kingdom,phylum,family,class,order,genus,species 
E)  domain,kingdom,phylum,class,order,family,genus,species 
A)  genus,species,order,family,class,phylum,kingdom,domain 
B)  kingdom,domain,phylum,class,order,family,genus,species 
C)  species,genus,family,order,class,phylum,domain,kingdom 
D)  domain,kingdom,phylum,family,class,order,genus,species 
E)  domain,kingdom,phylum,class,order,family,genus,species

Question 6

Select the statements that are true about mitosis.Select the TWO answers that are correct.

Accepted Answer

A)  Mitosis is the longest part of the cell cycle,as it is a slow process for precise division of the nucleus to occur. 
B)  During mitosis,duplicated chromosomes separate and become part of two different daughter cells. 
C)  Mitosis is the division of the cell nucleus and cytoplasm into two genetically identical daughter cells. 
D)  Two cycles of mitosis from one original cell result in four genetically identical daughter cells. 
E)  The two daughter cells resulting from mitosis contain half the genetic material of the parent cell. 
A)  Mitosis is the longest part of the cell cycle,as it is a slow process for precise division of the nucleus to occur. 
B)  During mitosis,duplicated chromosomes separate and become part of two different daughter cells. 
C)  Mitosis is the division of the cell nucleus and cytoplasm into two genetically identical daughter cells. 
D)  Two cycles of mitosis from one original cell result in four genetically identical daughter cells. 
E)  The two daughter cells resulting from mitosis contain half the genetic material of the parent cell.

Question 7

Where are the protons,neutrons,and electrons located in an atom?

Accepted Answer

A)  Protons and neutrons are located in the nucleus,and electrons are located in orbitals. 
B)  Protons,electrons,and neutrons are located in the nucleus,and energy is located in orbitals. 
C)  Electrons and neutrons are located in the nucleus,and protons are located in orbitals. 
D)  Protons and electrons are located in the nucleus,and neutrons are located in orbitals. 
E)  Electrons and neutrons are located in orbitals,and protons are located in the nucleus. 
A)  Protons and neutrons are located in the nucleus,and electrons are located in orbitals. 
B)  Protons,electrons,and neutrons are located in the nucleus,and energy is located in orbitals. 
C)  Electrons and neutrons are located in the nucleus,and protons are located in orbitals. 
D)  Protons and electrons are located in the nucleus,and neutrons are located in orbitals. 
E)  Electrons and neutrons are located in orbitals,and protons are located in the nucleus.

Question 8

How does recombination contribute to offspring diversity?

Accepted Answer

A)  It yields gametes with random combinations of maternal and paternal chromosomes. 
B)  It modifies chromosomes to generate new alleles of genes that code for proteins. 
C)  It generates gametes with selective advantages over the gametes of competitors. 
D)  It increases the genetic diversity among gametes produced by an organism. 
E)  It yields chromosomes that contain both maternal and paternal DNA. 
A)  It yields gametes with random combinations of maternal and paternal chromosomes. 
B)  It modifies chromosomes to generate new alleles of genes that code for proteins. 
C)  It generates gametes with selective advantages over the gametes of competitors. 
D)  It increases the genetic diversity among gametes produced by an organism. 
E)  It yields chromosomes that contain both maternal and paternal DNA.

Question 9

How is mitochondrial DNA different than the DNA found in the nucleus of cells?

Accepted Answer

A)  It is a circular piece of DNA that is inherited from the father only. 
B)  It is a circular piece of DNA that is inherited from both parents. 
C)  It is a linear piece of DNA that is inherited from the father only. 
D)  It is a linear piece of DNA that is inherited from the mother only. 
E)  It is a circular piece of DNA that is inherited from the mother only. 
A)  It is a circular piece of DNA that is inherited from the father only. 
B)  It is a circular piece of DNA that is inherited from both parents. 
C)  It is a linear piece of DNA that is inherited from the father only. 
D)  It is a linear piece of DNA that is inherited from the mother only. 
E)  It is a circular piece of DNA that is inherited from the mother only.

Question 10

What meiotic event produces four gametes with abnormal numbers of chromosomes?

Accepted Answer

A)  meiosis II nondisjunction 
B)  aneuploidy 
C)  recombination 
D)  meiosis I nondisjunction 
E)  unequal crossing over 
A)  meiosis II nondisjunction 
B)  aneuploidy 
C)  recombination 
D)  meiosis I nondisjunction 
E)  unequal crossing over

Question 11

How would meiosis differ without independent assortment?

Accepted Answer

A)  The genetic diversity generated by meiosis would be limited to recombination. 
B)  No genetic diversity among gametes would be generated during meiosis. 
C)  Recombination would not occur because homologous chromosomes would not pair. 
D)  Each gamete would have a random combination of maternal and paternal chromosomes. 
E)  Gametes would have all maternal chromosomes or all paternal chromosomes. 
A)  The genetic diversity generated by meiosis would be limited to recombination. 
B)  No genetic diversity among gametes would be generated during meiosis. 
C)  Recombination would not occur because homologous chromosomes would not pair. 
D)  Each gamete would have a random combination of maternal and paternal chromosomes. 
E)  Gametes would have all maternal chromosomes or all paternal chromosomes.

Question 12

What kind of trait produces pink flowers when red flowers are crossed with white flowers?

Accepted Answer

A)  dominant 
B)  X-linked 
C)  incompletely dominant 
D)  codominant 
E)  recessive 
A)  dominant 
B)  X-linked 
C)  incompletely dominant 
D)  codominant 
E)  recessive

Question 13

What role does carbon dioxide play in photosynthesis?

Accepted Answer

A)  Carbon dioxide reacts with oxygen to form water and glucose. 
B)  The oxygen in carbon dioxide is combined with hydrogen to form water. 
C)  Carbon dioxide reacts with light to form oxygen and glucose. 
D)  Carbon dioxide is split into hydrogen and oxygen. 
E)  The carbon in carbon dioxide is incorporated into sugar molecules. 
A)  Carbon dioxide reacts with oxygen to form water and glucose. 
B)  The oxygen in carbon dioxide is combined with hydrogen to form water. 
C)  Carbon dioxide reacts with light to form oxygen and glucose. 
D)  Carbon dioxide is split into hydrogen and oxygen. 
E)  The carbon in carbon dioxide is incorporated into sugar molecules.

Question 14

What are the characteristics of a fruit that is ripe? Select the TWO answers that are correct.

Accepted Answer

A)  The fruit softens as cell walls break down. 
B)  Fruit skin changes color as the green chlorophyll deteriorates. 
C)  Dark spots form on the fruit surface as seeds sprout inside. 
D)  The size of the fruit increases as ethylene is produced. 
E)  The flesh of the fruit loses sugar as the seeds develop. 
A)  The fruit softens as cell walls break down. 
B)  Fruit skin changes color as the green chlorophyll deteriorates. 
C)  Dark spots form on the fruit surface as seeds sprout inside. 
D)  The size of the fruit increases as ethylene is produced. 
E)  The flesh of the fruit loses sugar as the seeds develop.

Question 15

Why do salt crystals form in a pan of seawater from which the water has been evaporated?

Accepted Answer

A)  In the absence of water,sodium and chloride form ionic bonds and aggregate into crystals. 
B)  In the absence of water,chloride donates electrons to sodium and the compounds aggregate into crystals. 
C)  In the absence of water,sodium and chloride share electrons in a stable bond that permits crystal formation. 
D)  In the absence of water,sodium and chloride form hydrogen bonds and aggregate into crystals. 
E)  In the absence of water,sodium and chloride form covalent bonds and aggregate into crystals. 
A)  In the absence of water,sodium and chloride form ionic bonds and aggregate into crystals. 
B)  In the absence of water,chloride donates electrons to sodium and the compounds aggregate into crystals. 
C)  In the absence of water,sodium and chloride share electrons in a stable bond that permits crystal formation. 
D)  In the absence of water,sodium and chloride form hydrogen bonds and aggregate into crystals. 
E)  In the absence of water,sodium and chloride form covalent bonds and aggregate into crystals.

Question 16

Which behaviors would reduce an individual's ecological footprint? Select the TWO answers that are correct.

Accepted Answer

A)  buy more cheap items 
B)  reuse materials 
C)  do not ride bicycles 
D)  avoid mass transit 
E)  reduce consumption 
A)  buy more cheap items 
B)  reuse materials 
C)  do not ride bicycles 
D)  avoid mass transit 
E)  reduce consumption

Question 17

How can societies reduce or better manage their fresh water consumption? Select the TWO answers that are correct.

Accepted Answer

A)  enact ordinances that require all houses to have swimming pools 
B)  pass laws that lower efficiency standards of appliances that use water 
C)  create incentives to install high-efficiency faucets,spouts,and toilets 
D)  require coastal farmers to use salt water to irrigate their crops 
E)  institute water conservation practices in agriculture and recreation 
A)  enact ordinances that require all houses to have swimming pools 
B)  pass laws that lower efficiency standards of appliances that use water 
C)  create incentives to install high-efficiency faucets,spouts,and toilets 
D)  require coastal farmers to use salt water to irrigate their crops 
E)  institute water conservation practices in agriculture and recreation

Question 18

Why can the same short tandem repeat region vary in length between the two copies of a chromosome of an individual?

Accepted Answer

A)  Each chromosome is inherited from a different parent. 
B)  Variation prevents the propagation of copy errors. 
C)  DNA replication is an imperfect process. 
D)  STR regions are modified during transcription. 
E)  Differences signal polymerase to bind to the correct strand. 
A)  Each chromosome is inherited from a different parent. 
B)  Variation prevents the propagation of copy errors. 
C)  DNA replication is an imperfect process. 
D)  STR regions are modified during transcription. 
E)  Differences signal polymerase to bind to the correct strand.

Question 19

What did the researchers conclude about how caffeine consumption affects memory function from the experiment?

Accepted Answer

A)  Caffeine improves memory function in elderly people. 
B)  Decaffeinated coffee worsens memory function in elderly people. 
C)  Caffeine has no effect on memory function in elderly people. 
D)  Elderly people should drink coffee in the afternoon to boost memory function. 
E)  Elderly people have poorer memory function in the afternoon as compared to young adults. 
A)  Caffeine improves memory function in elderly people. 
B)  Decaffeinated coffee worsens memory function in elderly people. 
C)  Caffeine has no effect on memory function in elderly people. 
D)  Elderly people should drink coffee in the afternoon to boost memory function. 
E)  Elderly people have poorer memory function in the afternoon as compared to young adults.

Question 20

Select the statement that best describes the function of heating and cooling in PCR.

Accepted Answer

A)  Heating facilitates strand denaturation,and cooling facilitates primer attachment. 
B)  Heating facilitates primer attachment,and cooling facilitates strand elongation. 
C)  Heating facilitates strand elongation,and cooling facilitates strand denaturation. 
D)  Heating facilitates strand denaturation,and cooling facilitates strand elongation. 
E)  Heating facilitates strand elongation,and cooling facilitates primer attachment. 
A)  Heating facilitates strand denaturation,and cooling facilitates primer attachment. 
B)  Heating facilitates primer attachment,and cooling facilitates strand elongation. 
C)  Heating facilitates strand elongation,and cooling facilitates strand denaturation. 
D)  Heating facilitates strand denaturation,and cooling facilitates strand elongation. 
E)  Heating facilitates strand elongation,and cooling facilitates primer attachment.

Exam 33: A Range of Biology

Which statement describes a correlation between two variables?

How do penicillin and similar antibiotics affect prokaryotic cells?

How might climate change affect global water supplies? Select the TWO answers that are correct.

Which statement describes a hydrogen bond between two water molecules?

What is the order of taxonomic classification from most general to most specific?

Select the statements that are true about mitosis.Select the TWO answers that are correct.

Where are the protons,neutrons,and electrons located in an atom?

How does recombination contribute to offspring diversity?

How is mitochondrial DNA different than the DNA found in the nucleus of cells?

What meiotic event produces four gametes with abnormal numbers of chromosomes?

How would meiosis differ without independent assortment?

What kind of trait produces pink flowers when red flowers are crossed with white flowers?

What role does carbon dioxide play in photosynthesis?

What are the characteristics of a fruit that is ripe? Select the TWO answers that are correct.

Why do salt crystals form in a pan of seawater from which the water has been evaporated?

Which behaviors would reduce an individual's ecological footprint? Select the TWO answers that are correct.

How can societies reduce or better manage their fresh water consumption? Select the TWO answers that are correct.

Why can the same short tandem repeat region vary in length between the two copies of a chromosome of an individual?

What did the researchers conclude about how caffeine consumption affects memory function from the experiment?

Select the statement that best describes the function of heating and cooling in PCR.

Process of Science

Chemistry of Life

Cell Structure and Function

Nutrition, Enzymes, Metabolism

Energy and Photosynthesis

Dietary Energy and Cellular Respiration

Genes to Proteins

DNA Structure and Replication

Cell Cycle and Cell Differentiation

Mutations and Cancer

Simple Inheritance and Meiosis

Complex Inheritance

Natural Selection and Adaptation

Nonadaptive Evolution and Speciation

Evidence for Evolution

Life on Earth

Prokaryotic Diversity

Eukaryotic Diversity

Human Evolution

Population Ecology

Community Ecology

Ecosystem Ecology

Sustainability

Plant Growth and Reproduction

Plant Physiology

Overview of Physiology

Digestive System

Cardiovascular System

Respiratory System

Central Nervous System

Reproductive System

Immune System

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