Question 1

During which phase of mitosis do chromosomes condense?

Accepted Answer

A) anaphase 
B) prophase 
C) metaphase 
D) telophase 
A) anaphase 
B) prophase 
C) metaphase 
D) telophase

Question 2

Which of the following is the correct sequence of stages in mitotic cell division?

Accepted Answer

A) anaphase-telophase-prophase-metaphase 
B) prophase-metaphase-anaphase-telophase 
C) metaphase-prophase-anaphase-telophase 
D) telophase-anaphase-prophase-metaphase 
A) anaphase-telophase-prophase-metaphase 
B) prophase-metaphase-anaphase-telophase 
C) metaphase-prophase-anaphase-telophase 
D) telophase-anaphase-prophase-metaphase

Question 3

How do prokaryotic and eukaryotic chromosomes differ?

Accepted Answer

A) Prokaryotic chromosomes are not made from nucleotides. 
B) Eukaryotic chromosomes occur singly, and prokaryotic chromosomes occur as pairs. 
C) Prokaryotic chromosomes are not contained in a membrane-bound organelle. 
D) Genetic information is stored as DNA in eukaryotic cells and as proteins in prokaryotic cells. 
A) Prokaryotic chromosomes are not made from nucleotides. 
B) Eukaryotic chromosomes occur singly, and prokaryotic chromosomes occur as pairs. 
C) Prokaryotic chromosomes are not contained in a membrane-bound organelle. 
D) Genetic information is stored as DNA in eukaryotic cells and as proteins in prokaryotic cells.

Question 4

If a mammal is born without the ability to produce EGF (epidermal growth factor), then its:

Accepted Answer

A) licked wounds will heal faster than usual. 
B) Cdk's will not function properly. 
C) normal rate of cyclin production will not be affected. 
D) cell cycles will not contain the proper checkpoints. 
A) licked wounds will heal faster than usual. 
B) Cdk's will not function properly. 
C) normal rate of cyclin production will not be affected. 
D) cell cycles will not contain the proper checkpoints.

Question 5

Growth factors stimulate:

Accepted Answer

A) cyclin production. 
B) the cell to skip the S and G1 phases of interphase and undergo mitosis directly. 
C) Cdk's to synthesize enzymes that digest cyclins. 
D) the cell to ignore the checkpoints of the cell cycle. 
A) cyclin production. 
B) the cell to skip the S and G1 phases of interphase and undergo mitosis directly. 
C) Cdk's to synthesize enzymes that digest cyclins. 
D) the cell to ignore the checkpoints of the cell cycle.

Question 6

One difference between mitotic cell division in animal cells and plant cells is that:

Accepted Answer

A) plant cells do not undergo anaphase. 
B) animal cells do not undergo telophase. 
C) in animal cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator. 
D) in plant cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator. 
E) cytokinesis occurs in animal cells but has not yet been observed in plant cells. 
A) plant cells do not undergo anaphase. 
B) animal cells do not undergo telophase. 
C) in animal cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator. 
D) in plant cells, cytokinesis occurs as vesicles deposit carbohydrates along the equator. 
E) cytokinesis occurs in animal cells but has not yet been observed in plant cells.

Question 7

During cell division, all of the following typically occur EXCEPT:

Accepted Answer

A) two daughter cells are produced from one parent cell. 
B) each daughter contains half of the cytoplasm from the parent cell. 
C) each daughter cell receives half of the hereditary information in the parent cell. 
D) the hereditary information is identical in both parent and daughter cells. 
A) two daughter cells are produced from one parent cell. 
B) each daughter contains half of the cytoplasm from the parent cell. 
C) each daughter cell receives half of the hereditary information in the parent cell. 
D) the hereditary information is identical in both parent and daughter cells.

Question 8

In prokaryotes, the daughter cells produced by binary fission:

Accepted Answer

A) contain half the DNA of the original parent cell. 
B) are, with the exception of random mutations, genetically identical to the parent cell. 
C) cannot replicate themselves. 
D) can reproduce either by binary fission or by the production of gametes. 
A) contain half the DNA of the original parent cell. 
B) are, with the exception of random mutations, genetically identical to the parent cell. 
C) cannot replicate themselves. 
D) can reproduce either by binary fission or by the production of gametes.

Question 9

Which of the following is represented by ferns and other plants?

Accepted Answer

A) haploid life cycle 
B) diploid life cycle 
C) alternation of generations 
A) haploid life cycle 
B) diploid life cycle 
C) alternation of generations

Question 10

In a typical human body cell, how many chromosomes are there?

Accepted Answer

A) 1 
B) 2 
C) 23 
D) 46 
A) 1 
B) 2 
C) 23 
D) 46

Question 11

Which of the following organisms does not reproduce its cells by mitosis and cytokinesis?

Accepted Answer

A) a cow 
B) a bacterium 
C) a mushroom 
D) a cockroach 
E) a banana tree 
A) a cow 
B) a bacterium 
C) a mushroom 
D) a cockroach 
E) a banana tree

Question 12

The two ends of a single chromosome are called:

Accepted Answer

A) genes. 
B) loci. 
C) telomeres. 
D) chromatids. 
E) centromeres. 
A) genes. 
B) loci. 
C) telomeres. 
D) chromatids. 
E) centromeres.

Question 13

Which of the following is represented by birds?

Accepted Answer

A) haploid life cycle 
B) diploid life cycle 
C) alternation of generations 
A) haploid life cycle 
B) diploid life cycle 
C) alternation of generations

Question 14

During meiosis, the cytokinesis that follows telophase II results in:

Accepted Answer

A) two haploid cells. 
B) four haploid cells. 
C) two diploid cells. 
D) four diploid cells. 
A) two haploid cells. 
B) four haploid cells. 
C) two diploid cells. 
D) four diploid cells.

Question 15

Kinetochores attach:

Accepted Answer

A) chromosomes to each other. 
B) sister chromatids to each other. 
C) chromosomes to ribosomes. 
D) chromatids to spindle microtubules. 
A) chromosomes to each other. 
B) sister chromatids to each other. 
C) chromosomes to ribosomes. 
D) chromatids to spindle microtubules.

Question 16

The different forms of a gene-for example, those responsible for eye color-are called:

Accepted Answer

A) cyclins. 
B) alleles. 
C) telomeres. 
D) sister chromatids. 
E) receptors. 
A) cyclins. 
B) alleles. 
C) telomeres. 
D) sister chromatids. 
E) receptors.

Question 17

When a cell divides via asexual reproduction:

Accepted Answer

A) each daughter cell receives a nearly perfect copy of the parent cell's genetic information. 
B) each daughter cell receives exactly half the genetic information in the parent cell. 
C) each daughter cell receives the same amount of genetic information that was in the parent cell, but it has been altered. 
D) the genetic information is randomly parceled out to the daughter cells. 
A) each daughter cell receives a nearly perfect copy of the parent cell's genetic information. 
B) each daughter cell receives exactly half the genetic information in the parent cell. 
C) each daughter cell receives the same amount of genetic information that was in the parent cell, but it has been altered. 
D) the genetic information is randomly parceled out to the daughter cells.

Question 18

The DNA in a chromosome most resembles:

Accepted Answer

A) a pleated sheet. 
B) beads on a string. 
C) a straight road. 
D) a spiral staircase. 
A) a pleated sheet. 
B) beads on a string. 
C) a straight road. 
D) a spiral staircase.

Question 19

In DNA, phosphate binds to:

Accepted Answer

A) adenine. 
B) ribose. 
C) deoxyribose. 
D) other phosphate molecules. 
A) adenine. 
B) ribose. 
C) deoxyribose. 
D) other phosphate molecules.

Question 20

Mutations may be detrimental, beneficial, or neutral to the cell or organism in which they occur. True or False?

Accepted Answer

A) True 
 B)False

Exam 9: The Continuity of Life: Cellular Reproduction

During which phase of mitosis do chromosomes condense?

Which of the following is the correct sequence of stages in mitotic cell division?

How do prokaryotic and eukaryotic chromosomes differ?

If a mammal is born without the ability to produce EGF (epidermal growth factor), then its:

Growth factors stimulate:

One difference between mitotic cell division in animal cells and plant cells is that:

During cell division, all of the following typically occur EXCEPT:

In prokaryotes, the daughter cells produced by binary fission:

Which of the following is represented by ferns and other plants?

In a typical human body cell, how many chromosomes are there?

Which of the following organisms does not reproduce its cells by mitosis and cytokinesis?

The two ends of a single chromosome are called:

Which of the following is represented by birds?

During meiosis, the cytokinesis that follows telophase II results in:

Kinetochores attach:

The different forms of a gene-for example, those responsible for eye color-are called:

When a cell divides via asexual reproduction:

The DNA in a chromosome most resembles:

In DNA, phosphate binds to:

Mutations may be detrimental, beneficial, or neutral to the cell or organism in which they occur. True or False?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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