Question 1

The ________ is a microtubule structure that binds to sister chromatids to separate them in anaphase.

Accepted Answer

The answer of The ________ is a microtubule structure that...

Question 2

What is one of the similarities between prokaryotic and eukaryotic cell division?

Accepted Answer

A) DNA is unwound and duplicated by the same process. 
B) Microtubules separate the chromosomes. 
C) One cell divides into four cells. 
D) At the end of cell division, nuclear membranes form around the chromosomes. 
A) DNA is unwound and duplicated by the same process. 
B) Microtubules separate the chromosomes. 
C) One cell divides into four cells. 
D) At the end of cell division, nuclear membranes form around the chromosomes.

Question 3

A liver cell from a human male has:

Accepted Answer

A) 22 pairs of autosomes, an X chromosome, and a Y chromosome. 
B) 22 pairs of autosomes and two X chromosomes. 
C) 46 pairs of autosomes, an X chromosome, and a Y chromosome. 
D) 23 pairs of autosomes and two X chromosomes. 
A) 22 pairs of autosomes, an X chromosome, and a Y chromosome. 
B) 22 pairs of autosomes and two X chromosomes. 
C) 46 pairs of autosomes, an X chromosome, and a Y chromosome. 
D) 23 pairs of autosomes and two X chromosomes.

Question 4

A cell is observed under the microscope.What feature will indicate that it has just reached the end of interphase?

Accepted Answer

A) a visible contractile ring 
B) two separate cells 
C) elongated, noncondensed chromosomes that are difficult to visualize 
D) chromosomes that are becoming well defined and visible 
A) a visible contractile ring 
B) two separate cells 
C) elongated, noncondensed chromosomes that are difficult to visualize 
D) chromosomes that are becoming well defined and visible

Question 5

Which cell structure physically moves the cell's chromosomes?

Accepted Answer

A) the plasma membrane 
B) the cell wall 
C) the mitotic spindle 
D) the contractile ring 
A) the plasma membrane 
B) the cell wall 
C) the mitotic spindle 
D) the contractile ring

Question 6

A gene is a hereditary unit that carries information for:

Accepted Answer

A) another gene. 
B) a sequence of sugars. 
C) a sequence of amino acids. 
D) a sequence of nucleotides. 
A) another gene. 
B) a sequence of sugars. 
C) a sequence of amino acids. 
D) a sequence of nucleotides.

Question 7

Choose the statement that is correct about the frequency of mitosis.

Accepted Answer

A) All cells divide throughout the existence of a multicellular eukaryote. 
B) Some cells, such as leaf cells, cease to divide after mature size is reached. 
C) Bone marrow cells are an example of cells that cease to divide after maturity. 
D) Brain cells are easy to replace because they divide frequently after maturity. 
A) All cells divide throughout the existence of a multicellular eukaryote. 
B) Some cells, such as leaf cells, cease to divide after mature size is reached. 
C) Bone marrow cells are an example of cells that cease to divide after maturity. 
D) Brain cells are easy to replace because they divide frequently after maturity.

Question 8

If a cell contains 20 chromosomes,how many chromatids will be present during prophase?

Accepted Answer

A) 30 
B) 20 
C) 5 
D) 40 
A) 30 
B) 20 
C) 5 
D) 40

Question 9

During the cytokinesis phase of cell division,plant cells develop a cell plate instead of a cleavage furrow.

Accepted Answer

A) True 
 B)False

Question 10

List and briefly describe three differences between prokaryotic and eukaryotic cell division.

Accepted Answer

(1)Prokaryotic cells have a single circu

Question 11

The ordering of bases in a gene determines the order of:

Accepted Answer

A) amino acids in a protein. 
B) mRNAs on a ribosome. 
C) genes on a chromosome. 
D) genes in a genome. 
A) amino acids in a protein. 
B) mRNAs on a ribosome. 
C) genes on a chromosome. 
D) genes in a genome.

Question 12

What is the relationship between genes and proteins,including the function of each?

Accepted Answer

Genes specify the amino acid s

Question 13

When a dividing human cell reaches telophase,23 nuclear membranes must form,one for each pair of chromosomes.

Accepted Answer

A) True 
 B)False

Question 14

Bacterial binary fission is essentially the same process as mitosis in animals and plants.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is the proper sequence of events in gene expression?

Accepted Answer

A) protein → DNA → mRNA 
B) mRNA → DNA → protein 
C) DNA → protein → mRNA 
D) DNA → mRNA → protein 
A) protein → DNA → mRNA 
B) mRNA → DNA → protein 
C) DNA → protein → mRNA 
D) DNA → mRNA → protein

Question 16

If a cell with two nuclei were discovered,which of the explanations below would be true?

Accepted Answer

A) Mitosis occurred without cytokinesis. 
B) The cell remained in interphase continuously. 
C) Meiosis and mitosis both occurred. 
D) Cytokinesis occurred without mitosis. 
A) Mitosis occurred without cytokinesis. 
B) The cell remained in interphase continuously. 
C) Meiosis and mitosis both occurred. 
D) Cytokinesis occurred without mitosis.

Question 17

The replication of a DNA molecule results in:

Accepted Answer

A) two DNA molecules, each with one old and one new strand. 
B) two DNA molecules, one being made of the old strands and one being made of two new strands. 
C) two DNA molecules, both of which are made of completely new strands. 
D) four unwound DNA strands. 
A) two DNA molecules, each with one old and one new strand. 
B) two DNA molecules, one being made of the old strands and one being made of two new strands. 
C) two DNA molecules, both of which are made of completely new strands. 
D) four unwound DNA strands.

Question 18

Human skin cells and human white blood cells of the immune system both perform protective functions.Skin cells function primarily in external physical protection,whereas white blood cells function primarily in internal protection.Nonetheless,both types of cells contain a complete copy of the human genome.Explain how cells can have the same genetic information and yet perform different functions.What prevents skin cells from making all the same proteins of a white blood cell?

Accepted Answer

Even though almost all cells contain the

Question 19

Which statement about binary fission is true?

Accepted Answer

A) It occurs during S phase of the cell cycle. 
B) It is the cell division process of both prokaryotic and eukaryotic cells. 
C) It is the cell division process of prokaryotic cells. 
D) It is part of interphase. 
A) It occurs during S phase of the cell cycle. 
B) It is the cell division process of both prokaryotic and eukaryotic cells. 
C) It is the cell division process of prokaryotic cells. 
D) It is part of interphase.

Question 20

Refer to the figure below, and then answer the question that follows.
  
-What is the advantage of chromatin coiling and condensing into tight structures before mitosis?

Accepted Answer

Compact bodies are much easier

Exam 9: The Links in Lifes Chain: Genetics and Cell Division

The ________ is a microtubule structure that binds to sister chromatids to separate them in anaphase.

What is one of the similarities between prokaryotic and eukaryotic cell division?

A liver cell from a human male has:

A cell is observed under the microscope.What feature will indicate that it has just reached the end of interphase?

Which cell structure physically moves the cell's chromosomes?

A gene is a hereditary unit that carries information for:

Choose the statement that is correct about the frequency of mitosis.

If a cell contains 20 chromosomes,how many chromatids will be present during prophase?

During the cytokinesis phase of cell division,plant cells develop a cell plate instead of a cleavage furrow.

List and briefly describe three differences between prokaryotic and eukaryotic cell division.

The ordering of bases in a gene determines the order of:

What is the relationship between genes and proteins,including the function of each?

When a dividing human cell reaches telophase,23 nuclear membranes must form,one for each pair of chromosomes.

Bacterial binary fission is essentially the same process as mitosis in animals and plants.

Which of the following is the proper sequence of events in gene expression?

If a cell with two nuclei were discovered,which of the explanations below would be true?

The replication of a DNA molecule results in:

Which statement about binary fission is true?

Refer to the figure below, and then answer the question that follows. -What is the advantage of chromatin coiling and condensing into tight structures before mitosis?

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

An Interactive Living World 3: Ecosystems and Biomes

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