Question 1

Chromosomes become visible during prophase of mitosis as a result of

Accepted Answer

A) uncoiling. 
B) DNA synthesis. 
C) condensation. 
D) chromatid duplication. 
E) addition of proteins to the DNA. 
A) uncoiling. 
B) DNA synthesis. 
C) condensation. 
D) chromatid duplication. 
E) addition of proteins to the DNA.

Question 2

The number of chromosomes in a eukaryotic cell

Accepted Answer

A) differs in various somatic cells of an individual. 
B) varies during the life cycle. 
C) is haploid among asexually reproducing forms and diploid if they reproduce sexually. 
D) is the same for all members of a species. 
E) is dependent on the age of the tissue. 
A) differs in various somatic cells of an individual. 
B) varies during the life cycle. 
C) is haploid among asexually reproducing forms and diploid if they reproduce sexually. 
D) is the same for all members of a species. 
E) is dependent on the age of the tissue.

Question 3

The distribution of cytoplasm to daughter cells is accomplished during

Accepted Answer

A) prokaryotic fission. 
B) mitosis. 
C) meiosis. 
D) cytokinesis. 
E) karyokinesis. 
A) prokaryotic fission. 
B) mitosis. 
C) meiosis. 
D) cytokinesis. 
E) karyokinesis.

Question 4

Which statement is TRUE of the behavior of chromosomes in mitosis?

Accepted Answer

A) Each new cell receives half of the number of chromosomes in the original cell. 
B) Each new cell receives copies of all the original chromosomes. 
C) If the original number of chromosomes was 46, each new cell will have 23. 
D) The sister chromosomes are not identical due to breakages in the DNA. 
E) All chromosomes are duplicated except the sex chromosomes. 
A) Each new cell receives half of the number of chromosomes in the original cell. 
B) Each new cell receives copies of all the original chromosomes. 
C) If the original number of chromosomes was 46, each new cell will have 23. 
D) The sister chromosomes are not identical due to breakages in the DNA. 
E) All chromosomes are duplicated except the sex chromosomes.

Question 5

When cells are not responding to normal controls over growth and division, they form a tissue mass known as a

Accepted Answer

A) metastasis. 
B) malignancy. 
C) tumor. 
D) carcinogen. 
E) nucleosome. 
A) metastasis. 
B) malignancy. 
C) tumor. 
D) carcinogen. 
E) nucleosome.

Question 6

Which of the following is the proper sequence for mitosis? I.metaphase
II)telophase
III)prophase
IV)anaphase

Accepted Answer

A) I, III, IV, II 
B) I, II, III, IV 
C) III, I, IV, II 
D) IV, I, III, II 
E) III, IV, I, II 
A) I, III, IV, II 
B) I, II, III, IV 
C) III, I, IV, II 
D) IV, I, III, II 
E) III, IV, I, II

Question 7

Which of the following is NOT an example of the results of mitosis?

Accepted Answer

A) a pair of identical twins 
B) a group of rooted plant cuttings from a single plant 
C) the cells produced by the asexual reproduction of a single-celled organism 
D) the offspring produced by two parents 
E) healing of a wound 
A) a pair of identical twins 
B) a group of rooted plant cuttings from a single plant 
C) the cells produced by the asexual reproduction of a single-celled organism 
D) the offspring produced by two parents 
E) healing of a wound

Question 8

Which of the following statements is TRUE?

Accepted Answer

A) Once a person reaches maturity, cell division stops except to repair wounds. 
B) Cell division in an adult signifies cancer. 
C) Some specific cells throughout the body retain the ability to divide and replace themselves. 
D) Mitosis always produces haploid cells. 
E) All cells retain the ability to divide even after the organism reaches maturity. 
A) Once a person reaches maturity, cell division stops except to repair wounds. 
B) Cell division in an adult signifies cancer. 
C) Some specific cells throughout the body retain the ability to divide and replace themselves. 
D) Mitosis always produces haploid cells. 
E) All cells retain the ability to divide even after the organism reaches maturity.

Question 9

Cancer cells

Accepted Answer

A) have altered plasma membranes. 
B) have a lessened ability to attach to other cells. 
C) divide to produce high densities of cells. 
D) show an amplified reliance on glycolysis. 
E) exhibit all of these. 
A) have altered plasma membranes. 
B) have a lessened ability to attach to other cells. 
C) divide to produce high densities of cells. 
D) show an amplified reliance on glycolysis. 
E) exhibit all of these.

Question 10

This illustration shows

Accepted Answer

A) cytoplasmic division in an animal cell.   
B) a contractile ring mechanism. 
C) how chromosomes are dragged to the poles. 
D) cytoplasmic division in an animal cell and a contractile ring mechanism. 
E) cytoplasmic division in an animal cell and how chromosomes are dragged to the poles. 
A) cytoplasmic division in an animal cell.   
B) a contractile ring mechanism. 
C) how chromosomes are dragged to the poles. 
D) cytoplasmic division in an animal cell and a contractile ring mechanism. 
E) cytoplasmic division in an animal cell and how chromosomes are dragged to the poles.

Question 11

Which of the following statements is TRUE about anaphase?

Accepted Answer

A) When sister chromatids separate, each is called a chromosome. 
B) Motor proteins drag chromosomes towards the poles. 
C) Some microtubules slide past each other, pushing the poles farther apart. 
D) Kinetochore microtubules shrink at both ends. 
E) All of these are true. 
A) When sister chromatids separate, each is called a chromosome. 
B) Motor proteins drag chromosomes towards the poles. 
C) Some microtubules slide past each other, pushing the poles farther apart. 
D) Kinetochore microtubules shrink at both ends. 
E) All of these are true.

Question 12

Understanding cell division requires knowledge about

Accepted Answer

A) information that guides inheritance. 
B) how information in a parent cell is copied. 
C) mechanisms that distribute information to daughter cells. 
D) mechanisms that ensure new individuals receive parental information. 
E) all of these. 
A) information that guides inheritance. 
B) how information in a parent cell is copied. 
C) mechanisms that distribute information to daughter cells. 
D) mechanisms that ensure new individuals receive parental information. 
E) all of these.

Question 13

The chromatids detach from one another and become visibly separate chromosomes during

Accepted Answer

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

Question 14

The stage just preceding nuclear and cytoplasmic division is

Accepted Answer

A) the G1 stage. 
B) the G2 stage. 
C) the M stage. 
D) the S stage. 
E) all of these stages. 
A) the G1 stage. 
B) the G2 stage. 
C) the M stage. 
D) the S stage. 
E) all of these stages.

Question 15

If a parent cell has 16 chromosomes, how many sister chromatids will be present after duplication of the chromosomes?

Accepted Answer

A) 64 
B) 32 
C) 16 
D) 8 
E) 4 
A) 64 
B) 32 
C) 16 
D) 8 
E) 4

Question 16

The chromosomes move to opposite poles during

Accepted Answer

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

Question 17

During the "gap" phases of the cell cycle, most of the activity is directed toward

Accepted Answer

A) DNA replication. 
B) nuclear membrane synthesis. 
C) resting for the next step. 
D) sorting the chromosomes. 
E) growing and synthesizing proteins 
A) DNA replication. 
B) nuclear membrane synthesis. 
C) resting for the next step. 
D) sorting the chromosomes. 
E) growing and synthesizing proteins

Question 18

Cytoplasmic division (cytokinesis)

Accepted Answer

A) differs in plant and animal cells. 
B) usually accompanies nuclear division. 
C) involves microtubules and/or actin filaments. 
D) in plant cells utilizes an established zone marking the plane of division. 
E) does all of these. 
A) differs in plant and animal cells. 
B) usually accompanies nuclear division. 
C) involves microtubules and/or actin filaments. 
D) in plant cells utilizes an established zone marking the plane of division. 
E) does all of these.

Question 19

Which of the following four statements is false?

Accepted Answer

A) The location of the centromere is unique for each chromosome. 
B) The bipolar spindle forms during nuclear division. 
C) The spindle apparatus is composed of microtubules. 
D) Some microtubules overlap at the spindle equator. 
E) None of these are false. 
A) The location of the centromere is unique for each chromosome. 
B) The bipolar spindle forms during nuclear division. 
C) The spindle apparatus is composed of microtubules. 
D) Some microtubules overlap at the spindle equator. 
E) None of these are false.

Question 20

Chromosomes are duplicated during what stage of the cell cycle?

Accepted Answer

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

Exam 9: How Cells Reproduce

Chromosomes become visible during prophase of mitosis as a result of

The number of chromosomes in a eukaryotic cell

The distribution of cytoplasm to daughter cells is accomplished during

Which statement is TRUE of the behavior of chromosomes in mitosis?

When cells are not responding to normal controls over growth and division, they form a tissue mass known as a

Which of the following is the proper sequence for mitosis? I.metaphase II)telophase III)prophase IV)anaphase

Which of the following is NOT an example of the results of mitosis?

Which of the following statements is TRUE?

Cancer cells

This illustration shows

Which of the following statements is TRUE about anaphase?

Understanding cell division requires knowledge about

The chromatids detach from one another and become visibly separate chromosomes during

The stage just preceding nuclear and cytoplasmic division is

If a parent cell has 16 chromosomes, how many sister chromatids will be present after duplication of the chromosomes?

The chromosomes move to opposite poles during

During the "gap" phases of the cell cycle, most of the activity is directed toward

Cytoplasmic division (cytokinesis)

Which of the following four statements is false?

Chromosomes are duplicated during what stage of the cell cycle?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters