Question 1

Which stage of the cell cycle focuses on cell growth,replication of organelles,and the accumulation of material for synthesizing DNA?

Accepted Answer

A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase 
A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase B

Question 2

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-can be unleashed by internal or external signals.

Accepted Answer

A) True 
 B)False  True

Question 3

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

Accepted Answer

A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase 
A) M phase 
B) G1 phase 
C) G2 phase 
D) S phase 
E) G0 phase E

Question 4

The region that contains the genetic information in a bacterial cell is called the

Accepted Answer

A) nucleus. 
B) nucleoid. 
C) nucleolus. 
D) nucleosome. 
E) nucleoprotein. 
A) nucleus. 
B) nucleoid. 
C) nucleolus. 
D) nucleosome. 
E) nucleoprotein.

Question 5

Interphase

Accepted Answer

A) occupies the majority of the cell cycle 
B) includes G1,S,and G2 stages 
C) results in an increase in cell size 
D) All of the answer choices are correct. 
E) Only A and C are correct. 
A) occupies the majority of the cell cycle 
B) includes G1,S,and G2 stages 
C) results in an increase in cell size 
D) All of the answer choices are correct. 
E) Only A and C are correct.

Question 6

Explain how a geneticist could attempt to prevent cancer by manipulating a person's proto-oncogenes.

Accepted Answer

Answers may vary but the essay should di

Question 7

Which of the following accurately describe mitosis? Select all that apply.

Accepted Answer

A) Mitosis is a process that divides the nuclear contents only. 
B) Mitosis uses a diploid (2n)parent cell to form daughter cells containing a haploid number(n)of chromosomes. 
C) Mitosis produces two daughter cells that are exactly the same size and have the same number of organelles as the parent cell. 
D) Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell. 
E) Mitosis is involved in development of a fertilized egg into a multicellular organism. 
A) Mitosis is a process that divides the nuclear contents only. 
B) Mitosis uses a diploid (2n)parent cell to form daughter cells containing a haploid number(n)of chromosomes. 
C) Mitosis produces two daughter cells that are exactly the same size and have the same number of organelles as the parent cell. 
D) Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell. 
E) Mitosis is involved in development of a fertilized egg into a multicellular organism.

Question 8

The event that signals the start of anaphase is

Accepted Answer

A) division of the centromeres to separate sister chromatids. 
B) migration of the centrioles to opposite poles of the nuclear space. 
C) a cleavage furrow starts to form. 
D) asters disappear. 
A) division of the centromeres to separate sister chromatids. 
B) migration of the centrioles to opposite poles of the nuclear space. 
C) a cleavage furrow starts to form. 
D) asters disappear.

Question 9

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-are only present in the cell immediately before apoptosis begins.

Accepted Answer

A) True 
 B)False

Question 10

Use the following line to complete the next group of questions.

The enzymes that bring about apoptosis:
-are called caspases.

Accepted Answer

A) True 
 B)False

Question 11

Which sequence of the mitotic stages is correct?

Accepted Answer

A) prophase,anaphase,prometaphase,metaphase,telophase 
B) prophase,telophase,anaphase,prometaphase,metaphase 
C) prophase,prometaphase,metaphase,anaphase,telophase 
D) telophase,anaphase,prophase,prometaphase,metaphase 
E) anaphase,prometaphase,metaphase,prophase,telophase 
A) prophase,anaphase,prometaphase,metaphase,telophase 
B) prophase,telophase,anaphase,prometaphase,metaphase 
C) prophase,prometaphase,metaphase,anaphase,telophase 
D) telophase,anaphase,prophase,prometaphase,metaphase 
E) anaphase,prometaphase,metaphase,prophase,telophase

Question 12

Which of the following is NOT true about cancer cells?

Accepted Answer

A) They never fully differentiate. 
B) They exhibit contact inhibition. 
C) They exhibit uncontrolled growth. 
D) They exhibit disorganized growth. 
E) They may undergo metastasis. 
A) They never fully differentiate. 
B) They exhibit contact inhibition. 
C) They exhibit uncontrolled growth. 
D) They exhibit disorganized growth. 
E) They may undergo metastasis.

Question 13

Apoptosis

Accepted Answer

A) is programmed cell death. 
B) is a process that acts to decrease the number of somatic cells. 
C) frees the fingers and toes of the human embryo from their "webbed" structure to independent structures. 
D) All of the choices are correct. 
A) is programmed cell death. 
B) is a process that acts to decrease the number of somatic cells. 
C) frees the fingers and toes of the human embryo from their "webbed" structure to independent structures. 
D) All of the choices are correct.

Question 14

Binary fission in bacteria differs from mitosis because

Accepted Answer

A) the chromosome copies attach to the plasma membrane and are pulled apart by cell growth. 
B) the chromosome is a simple DNA strand without complex proteins and there is no spindle formation. 
C) there is no nuclear membrane to break down and rebuild. 
D) All of the choices are correct. 
E) None of the choices are correct. 
A) the chromosome copies attach to the plasma membrane and are pulled apart by cell growth. 
B) the chromosome is a simple DNA strand without complex proteins and there is no spindle formation. 
C) there is no nuclear membrane to break down and rebuild. 
D) All of the choices are correct. 
E) None of the choices are correct.

Question 15

Which statement is NOT true about eukaryotic chromosomes?

Accepted Answer

A) There is only one chromosome of each type in each body cell. 
B) Chromosomes contain both DNA and associated histones. 
C) Chromosomes condense from chromatin at the start of mitosis. 
D) Chromosomes disperse back into chromatin at the end of mitosis. 
E) Chromosomes are not located within the nuclear envelope during mitosis. 
A) There is only one chromosome of each type in each body cell. 
B) Chromosomes contain both DNA and associated histones. 
C) Chromosomes condense from chromatin at the start of mitosis. 
D) Chromosomes disperse back into chromatin at the end of mitosis. 
E) Chromosomes are not located within the nuclear envelope during mitosis.

Question 16

Which of the following are the critical checkpoints during interphase?

Accepted Answer

A) M to G1 stage and G2 to M stage 
B) S to G2 stage and G2 to M stage 
C) G1 to S stage and G2 to M stage 
D) M to G1 stage and S to G2 stage 
A) M to G1 stage and G2 to M stage 
B) S to G2 stage and G2 to M stage 
C) G1 to S stage and G2 to M stage 
D) M to G1 stage and S to G2 stage

Question 17

Which statement below best describes the difference between mitosis and cytokinesis?

Accepted Answer

A) Mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm. 
B) Mitosis is the portion of the cell cycle that divides the cytoplasm while cytokinesis divides the nuclear material. 
C) Mitosis is the portion of the cell cycle that uses a contractile ring to divide the nuclear material while cytokinesis uses the contractile ring to divide the cell membrane. 
D) Mitosis is the portion of the cell cycle that uses a cell plate to divide the cell membrane in plant cells while cytokinesis uses a contractile ring to divide the cell membrane in animal cells. 
A) Mitosis is the portion of the cell cycle that divides the nuclear material while cytokinesis divides the cytoplasm. 
B) Mitosis is the portion of the cell cycle that divides the cytoplasm while cytokinesis divides the nuclear material. 
C) Mitosis is the portion of the cell cycle that uses a contractile ring to divide the nuclear material while cytokinesis uses the contractile ring to divide the cell membrane. 
D) Mitosis is the portion of the cell cycle that uses a cell plate to divide the cell membrane in plant cells while cytokinesis uses a contractile ring to divide the cell membrane in animal cells.

Question 18

Which of the following codes for the proteins that will promote the normal cell cycle and prevent apoptosis?

Accepted Answer

A) tumor suppressor genes 
B) oncogenes 
C) caspases 
D) proto-oncogenes 
A) tumor suppressor genes 
B) oncogenes 
C) caspases 
D) proto-oncogenes

Question 19

Generally,brain and nerve cells are not able to regenerate after injury because they have left the cell cycle and are unable to return.

Accepted Answer

A) True 
 B)False

Question 20

Virtually all of the specialized cells of multicellular organisms

Accepted Answer

A) develop through mutation from less specialized cells of the organism. 
B) contain more genetic material than less specialized cells of the same organism. 
C) contain less genetic material than less specialized cells of the same organism. 
D) have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells. 
A) develop through mutation from less specialized cells of the organism. 
B) contain more genetic material than less specialized cells of the same organism. 
C) contain less genetic material than less specialized cells of the same organism. 
D) have the same amount of DNA and the same number of chromosomes as all other cells of the organism and develop from the same basic stem cells.

Exam 9: The Cell Cycle and Cellular Reproduction

Which stage of the cell cycle focuses on cell growth,replication of organelles,and the accumulation of material for synthesizing DNA?

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -can be unleashed by internal or external signals.

Which stage is most associated with a cell that is unable to divide again,such as a muscle or nerve cell?

The region that contains the genetic information in a bacterial cell is called the

Interphase

Explain how a geneticist could attempt to prevent cancer by manipulating a person's proto-oncogenes.

Which of the following accurately describe mitosis? Select all that apply.

The event that signals the start of anaphase is

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -are only present in the cell immediately before apoptosis begins.

Use the following line to complete the next group of questions. The enzymes that bring about apoptosis: -are called caspases.

Which sequence of the mitotic stages is correct?

Which of the following is NOT true about cancer cells?

Apoptosis

Binary fission in bacteria differs from mitosis because

Which statement is NOT true about eukaryotic chromosomes?

Which of the following are the critical checkpoints during interphase?

Which statement below best describes the difference between mitosis and cytokinesis?

Which of the following codes for the proteins that will promote the normal cell cycle and prevent apoptosis?

Generally,brain and nerve cells are not able to regenerate after injury because they have left the cell cycle and are unable to return.

Virtually all of the specialized cells of multicellular organisms

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Sense Organs

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development and Aging

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

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