Question 1

The chromosomes become visible and the nucleus starts to break up during:

Accepted Answer

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

Question 2

Match the following.
A) metaphase
B) telophase
C) prophase
D) cytokinesis
E) anaphase
-The nuclear envelope has disappeared completely and sister chromatids are facing opposite poles

Accepted Answer

The answer of Match the following.
A) metaphase
B) telophase
C) prophase
D) cytokinesis
E)...

Question 3

The study of physical inheritance among living things is:

Accepted Answer

A)  proteomics. 
B)  genomics. 
C)  genetics. 
D)  reproduction. 
A)  proteomics. 
B)  genomics. 
C)  genetics. 
D)  reproduction.

Question 4

The ________ of an organism is its complete collection of genetic information.

Accepted Answer

The answer of The ________ of an organism is its...

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

What would happen if the cell cycle proceeded normally except cytokinesis did not occur?

Accepted Answer

A)  The absence of cytokinesis would inhibit mitosis. 
B)  The G1 and G2 phases would become shorter. 
C)  Cells without nuclei would be formed. 
D)  A large cell with multiple nuclei would result. 
A)  The absence of cytokinesis would inhibit mitosis. 
B)  The G1 and G2 phases would become shorter. 
C)  Cells without nuclei would be formed. 
D)  A large cell with multiple nuclei would result.

Question 7

What is one of the differences between cell division in plant cells and cell division in animal cells?

Accepted Answer

A)  Plant cells separate chromosomes by attachment to the plasma membrane. 
B)  There is no DNA replication before cell division in plant cells. 
C)  Plant cells do not use a mitotic spindle to separate chromosomes. 
D)  Plant cells separate by the formation of a new plasma membrane and cell wall in the middle of the cell. 
A)  Plant cells separate chromosomes by attachment to the plasma membrane. 
B)  There is no DNA replication before cell division in plant cells. 
C)  Plant cells do not use a mitotic spindle to separate chromosomes. 
D)  Plant cells separate by the formation of a new plasma membrane and cell wall in the middle of the cell.

Question 8

Chromosome I from your mother and chromosome I from your father are said to be homologous. This is because the chromosomes:

Accepted Answer

A)  appear the same size in a karyotype. 
B)  have different genes on them. 
C)  have the same genes on them. 
D)  determine the sex of the child. 
A)  appear the same size in a karyotype. 
B)  have different genes on them. 
C)  have the same genes on them. 
D)  determine the sex of the child.

Question 9

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 10

What is being separated during anaphase of mitosis?

Accepted Answer

A)  plasma membranes 
B)  sister chromatids 
C)  nuclear membranes 
D)  cytoplasm 
A)  plasma membranes 
B)  sister chromatids 
C)  nuclear membranes 
D)  cytoplasm

Question 11

What distinguishes one gene from another?

Accepted Answer

A)  the length of the chromosome the gene is on 
B)  the order of bases in the gene 
C)  the position of the gene on a chromosome 
D)  the order of amino acids of which the genes are made 
A)  the length of the chromosome the gene is on 
B)  the order of bases in the gene 
C)  the position of the gene on a chromosome 
D)  the order of amino acids of which the genes are made

Question 12

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 13

A karyotype:

Accepted Answer

A)  shows chromosomes as they appear before replication. 
B)  can reveal the location of a gene. 
C)  can show the number of chromosomes in a cell. 
D)  can reveal the presence of cancerous genes. 
A)  shows chromosomes as they appear before replication. 
B)  can reveal the location of a gene. 
C)  can show the number of chromosomes in a cell. 
D)  can reveal the presence of cancerous genes.

Question 14

What is the relationship between DNA and chromatin?

Accepted Answer

A)  Chromatin is the collection of proteins encoded by DNA. 
B)  A chromatin is a DNA molecule that is separated during mitosis. 
C)  A chromatin is a unit of DNA whose sequence encodes a protein. 
D)  Chromatin is the combination of DNA packaged around proteins. 
A)  Chromatin is the collection of proteins encoded by DNA. 
B)  A chromatin is a DNA molecule that is separated during mitosis. 
C)  A chromatin is a unit of DNA whose sequence encodes a protein. 
D)  Chromatin is the combination of DNA packaged around proteins.

Question 15

What is the initial step in DNA replication?

Accepted Answer

A)  breakdown of the nuclear envelope 
B)  formation of the mitotic spindle 
C)  formation of the cleavage furrow 
D)  unwinding of the DNA double helix 
A)  breakdown of the nuclear envelope 
B)  formation of the mitotic spindle 
C)  formation of the cleavage furrow 
D)  unwinding of the DNA double helix

Question 16

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 17

In cell division, the separation of duplicated chromosomes is ________.

Accepted Answer

The answer of In cell division, the separation of duplicated...

Question 18

You are a physician treating a patient with cancer. Traditional chemotherapy has not been working on this patient, so you prescribe a new class of drugs called taxanes, which inhibit microtubule function. Your patient asks you how they work. How would you explain to your patient how these drugs work?

Accepted Answer

Microtubules are involved in moving chro

Question 19

What is the relationship between genes and chromosomes?

Accepted Answer

A)  Chromosomes are proteins that carry genes made of DNA. 
B)  Genes are the proteins encoded by chromosomes. 
C)  Genes are the proteins around which DNA chromosomes are packaged. 
D)  A chromosome is a DNA molecule with many genes. 
A)  Chromosomes are proteins that carry genes made of DNA. 
B)  Genes are the proteins encoded by chromosomes. 
C)  Genes are the proteins around which DNA chromosomes are packaged. 
D)  A chromosome is a DNA molecule with many genes.

Question 20

What would be the consequence if one base were changed in the base sequence of a DNA molecule?

Accepted Answer

A)  Messenger RNA would correct the mistake. 
B)  Genome copying would be impossible. 
C)  Protein synthesis would stop. 
D)  A defective protein could be produced. 
A)  Messenger RNA would correct the mistake. 
B)  Genome copying would be impossible. 
C)  Protein synthesis would stop. 
D)  A defective protein could be produced.

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

The chromosomes become visible and the nucleus starts to break up during:

Match the following. A) metaphase B) telophase C) prophase D) cytokinesis E) anaphase -The nuclear envelope has disappeared completely and sister chromatids are facing opposite poles

The study of physical inheritance among living things is:

The ________ of an organism is its complete collection of genetic information.

Which cell structure physically moves the cell's chromosomes?

What would happen if the cell cycle proceeded normally except cytokinesis did not occur?

What is one of the differences between cell division in plant cells and cell division in animal cells?

Chromosome I from your mother and chromosome I from your father are said to be homologous. This is because the chromosomes:

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

What is being separated during anaphase of mitosis?

What distinguishes one gene from another?

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

A karyotype:

What is the relationship between DNA and chromatin?

What is the initial step in DNA replication?

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

In cell division, the separation of duplicated chromosomes is ________.

What is the relationship between genes and chromosomes?

What would be the consequence if one base were changed in the base sequence of a DNA molecule?

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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