Question 1

Which of the following statements is not generally true?

Accepted Answer

A) As an organism matures, it needs more cells. 
B) As an organism matures, it needs different kinds of cells. 
C) As an organism matures, it needs to replace the DNA in each of its cells. 
D) As an organism matures, it needs to replace worn-out cells. 
A) As an organism matures, it needs more cells. 
B) As an organism matures, it needs different kinds of cells. 
C) As an organism matures, it needs to replace the DNA in each of its cells. 
D) As an organism matures, it needs to replace worn-out cells.

Question 2

Which of the following statements about cell division is correct?

Accepted Answer

A) It is the process by which organisms grow and maintain their tissues. 
B) It is no longer necessary once an organism reaches maturity. 
C) It occurs in two sequential stages in all cells: mitosis and meiosis. 
D) It is the process by which fertilization occurs. 
A) It is the process by which organisms grow and maintain their tissues. 
B) It is no longer necessary once an organism reaches maturity. 
C) It occurs in two sequential stages in all cells: mitosis and meiosis. 
D) It is the process by which fertilization occurs.

Question 3

Sexual reproduction results in many benefits for a population, but not without some inconvenience; for example,

Accepted Answer

A) each participant must locate an appropriate mate. 
B) the time required for sexual reproduction may mean that short-term opportunities for population growth are missed. 
C) some genetic combinations may be disadvantageous and the effort invested in producing offspring wasted. 
D) all of the above 
A) each participant must locate an appropriate mate. 
B) the time required for sexual reproduction may mean that short-term opportunities for population growth are missed. 
C) some genetic combinations may be disadvantageous and the effort invested in producing offspring wasted. 
D) all of the above

Question 4

At the completion of mitosis, the nucleus of a human somatic cell has _____ chromosomes.

Accepted Answer

A) 23 
B) 46 
C) 92 
D) 184 
A) 23 
B) 46 
C) 92 
D) 184

Question 5

How many sister chromatids are in a bivalent?

Accepted Answer

A) 2 
B) 4 
C) 8 
D) 16 
A) 2 
B) 4 
C) 8 
D) 16

Question 6

By the time a cell enters meiosis II, it has

Accepted Answer

A) become haploid. 
B) reformed bivalents. 
C) become temporarily diploid. 
D) rejoined its maternal homologue. 
A) become haploid. 
B) reformed bivalents. 
C) become temporarily diploid. 
D) rejoined its maternal homologue.

Question 7

Which of the following choices states a correct reason why the process of cell division is different for prokaryotic than for eukaryotic cells?

Accepted Answer

A) Prokaryotes have a circular DNA molecule. 
B) Prokaryotic cells do not undergo cell division. 
C) Prokaryotic cells are larger than eukaryotic cells. 
D) Prokaryotic DNA contains different bases from those in eukaryotic DNA. 
A) Prokaryotes have a circular DNA molecule. 
B) Prokaryotic cells do not undergo cell division. 
C) Prokaryotic cells are larger than eukaryotic cells. 
D) Prokaryotic DNA contains different bases from those in eukaryotic DNA.

Question 8

The spindle microtubules break down and new nuclear envelopes form during the ____________________ portion of mitosis.

Accepted Answer

The answer of The spindle microtubules break down and new...

Question 9

The cell depicted below has a diploid number of 4 (2n = 4).  
Assuming cell division started with a diploid cell, in what stage of what type of cell division is the cell?

Accepted Answer

A) anaphase of mitosis 
B) anaphase I of meiosis 
C) anaphase II of meiosis 
D) Both a and c are possible. 
A) anaphase of mitosis 
B) anaphase I of meiosis 
C) anaphase II of meiosis 
D) Both a and c are possible.

Question 10

During mitosis, the number and shape of an organism's chromosomes become obvious. This set of identifiable chromosomes can be arranged into a diagram, or ____________________, of that organism.

Accepted Answer

The answer of During mitosis, the number and shape of...

Question 11

With the possible exception of mutation, the two daughter cells produced in the illustration below are identical to one another.

Accepted Answer

A) True 
 B)False

Question 12

Chromosomes become visible during the ____________________ stage of mitosis.

Accepted Answer

The answer of Chromosomes become visible during the ____________________ stage...

Question 13

If the skin cell of an organism has 24 chromosomes, its gametes must also have 24 chromosomes.

Accepted Answer

A) True 
 B)False

Question 14

The old saying that everyone has a double is likely to be  Correct; except for genetic mutation, the number of meiotically possible recombinations of human DNA are much smaller than the total number of individuals alive today.

Accepted Answer

A) True 
 B)False

Question 15

The four cells that result from meiosis are ____________________ rather than diploid.

Accepted Answer

The answer of The four cells that result from meiosis...

Question 16

A single cell grows into a multicellular organism by the process of

Accepted Answer

A) mitosis. 
B) meiosis. 
C) fertilization. 
D) duplication. 
A) mitosis. 
B) meiosis. 
C) fertilization. 
D) duplication.

Question 17

Interphase is an uneventful resting stage of the cell division cycle.

Accepted Answer

A) True 
 B)False

Question 18

The reduction division of meiosis has occurred when

Accepted Answer

A) bivalents are cut in half by proteins in their centromeres. 
B) half of the bivalents line up on each side of the metaphase plate. 
C) the first cell division of meiosis is complete. 
D) the second cell division of meiosis is complete. 
A) bivalents are cut in half by proteins in their centromeres. 
B) half of the bivalents line up on each side of the metaphase plate. 
C) the first cell division of meiosis is complete. 
D) the second cell division of meiosis is complete.

Question 19

Gametes contain _____ the genetic material that a generalized body cell contains.

Accepted Answer

A) half 
B) the same amount of 
C) twice 
D) four times 
A) half 
B) the same amount of 
C) twice 
D) four times

Question 20

The process of mitosis is thought to have evolved from binary fission. What similarities exist between these processes?

Accepted Answer

A) The DNA being separated is attached to a membrane during both processes. 
B) Both processes involve the separation of more than one piece of DNA. 
C) Both processes include DNA segregation. 
D) DNA must be tightly packaged into chromosomes before either process can begin. 
A) The DNA being separated is attached to a membrane during both processes. 
B) Both processes involve the separation of more than one piece of DNA. 
C) Both processes include DNA segregation. 
D) DNA must be tightly packaged into chromosomes before either process can begin.

Exam 10: Cell Division

Which of the following statements is not generally true?

Which of the following statements about cell division is correct?

Sexual reproduction results in many benefits for a population, but not without some inconvenience; for example,

At the completion of mitosis, the nucleus of a human somatic cell has _____ chromosomes.

How many sister chromatids are in a bivalent?

By the time a cell enters meiosis II, it has

Which of the following choices states a correct reason why the process of cell division is different for prokaryotic than for eukaryotic cells?

The spindle microtubules break down and new nuclear envelopes form during the ____________________ portion of mitosis.

The cell depicted below has a diploid number of 4 (2n = 4). Assuming cell division started with a diploid cell, in what stage of what type of cell division is the cell?

During mitosis, the number and shape of an organism's chromosomes become obvious. This set of identifiable chromosomes can be arranged into a diagram, or ____________________, of that organism.

With the possible exception of mutation, the two daughter cells produced in the illustration below are identical to one another.

Chromosomes become visible during the ____________________ stage of mitosis.

If the skin cell of an organism has 24 chromosomes, its gametes must also have 24 chromosomes.

The old saying that everyone has a double is likely to be Correct; except for genetic mutation, the number of meiotically possible recombinations of human DNA are much smaller than the total number of individuals alive today.

The four cells that result from meiosis are ____________________ rather than diploid.

A single cell grows into a multicellular organism by the process of

Interphase is an uneventful resting stage of the cell division cycle.

The reduction division of meiosis has occurred when

Gametes contain _____ the genetic material that a generalized body cell contains.

The process of mitosis is thought to have evolved from binary fission. What similarities exist between these processes?

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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