Question 1

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 2

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 no spindle forms. 
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 no spindle forms. 
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 3

Cancer cells require many nutrients,which are supplied by blood vessels.The growth of new blood vessels to cancerous tissue is called:

Accepted Answer

A) angiogenesis 
B) metastasis 
C) carcinogenesis 
D) apotosis 
A) angiogenesis 
B) metastasis 
C) carcinogenesis 
D) apotosis

Question 4

What factors are evaluated before a cell is allowed to proceed through the G1 checkpoint?

Accepted Answer

A) growth signals 
B) availability of nutrients 
C) the integrity of cellular DNA 
D) all of the above 
E) none of these 
A) growth signals 
B) availability of nutrients 
C) the integrity of cellular DNA 
D) all of the above 
E) none of these

Question 5

What is (are)the structures designated by the letter 'A'.

Accepted Answer

A) spindle fibers 
B) centrioles 
C) chromosomes 
D) kinetochore microtubules 
A) spindle fibers 
B) centrioles 
C) chromosomes 
D) kinetochore microtubules

Question 6

What structure will code 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 7

What phase of mitosis is pictured?

Accepted Answer

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

Question 8

Which statement is NOT true about mitosis?

Accepted Answer

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

Question 9

Oncogenes are all of the following EXCEPT:

Accepted Answer

A) mutated proto-oncogenes 
B) cancer causing genes 
C) genes that stimulate uncontrolled cell divisions 
D) tumor suppressor genes 
A) mutated proto-oncogenes 
B) cancer causing genes 
C) genes that stimulate uncontrolled cell divisions 
D) tumor suppressor genes

Question 10

Which does NOT occur in telophase?

Accepted Answer

A) Cytokinesis is under way. 
B) The nuclear envelope is being reconstructed. 
C) The centromeres split apart. 
D) Chromosomes de-condense into chromatin. 
E) The nucleolus reforms. 
A) Cytokinesis is under way. 
B) The nuclear envelope is being reconstructed. 
C) The centromeres split apart. 
D) Chromosomes de-condense into chromatin. 
E) The nucleolus reforms.

Question 11

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 above 
E) none of the above 
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 above 
E) none of the above

Question 12

The diploid (2n)number of chromosomes for a human being is

Accepted Answer

A) 23. 
B) 24. 
C) 44. 
D) 46. 
E) 48. 
A) 23. 
B) 24. 
C) 44. 
D) 46. 
E) 48.

Question 13

can be unleashed by internal or external signals.

Accepted Answer

A) True 
 B)False

Question 14

If a parent cell has 48 chromosomes,how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?

Accepted Answer

A) 24 chromosomes 
B) 48 chromosomes 
C) 12 chromosomes 
D) 96 chromosomes 
A) 24 chromosomes 
B) 48 chromosomes 
C) 12 chromosomes 
D) 96 chromosomes

Exam 9: The Cell Cycle and Cellular Reproduction

Apoptosis

Binary fission in bacteria differs from mitosis because

Cancer cells require many nutrients,which are supplied by blood vessels.The growth of new blood vessels to cancerous tissue is called:

What factors are evaluated before a cell is allowed to proceed through the G1 checkpoint?

What is (are)the structures designated by the letter 'A'.

What structure will code for the proteins that will promote the normal cell cycle and prevent apoptosis?

What phase of mitosis is pictured?

Which statement is NOT true about mitosis?

Oncogenes are all of the following EXCEPT:

Which does NOT occur in telophase?

Interphase:

The diploid (2n)number of chromosomes for a human being is

can be unleashed by internal or external signals.

If a parent cell has 48 chromosomes,how many chromosomes will each daughter cell have after mitosis and cytokinesis occurs?

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

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters

What factors are evaluated before a cell is allowed to proceed through the G₁ checkpoint?