Question 1

What is the difference between a benign and a malignant tumor?

Accepted Answer

A)  Benign tumors are composed of cancer cells; malignant tumors are not. 
B)  Benign tumors are not the result of a failure of a cell cycle control system; malignant tumors are. 
C)  Benign tumors do not metastasize; malignant tumors do. 
D)  Benign tumors do not form lumps; malignant tumors do form lumps. 
A)  Benign tumors are composed of cancer cells; malignant tumors are not. 
B)  Benign tumors are not the result of a failure of a cell cycle control system; malignant tumors are. 
C)  Benign tumors do not metastasize; malignant tumors do. 
D)  Benign tumors do not form lumps; malignant tumors do form lumps.

Question 2

During metaphase,________.

Accepted Answer

A)  the nuclear envelope breaks up 
B)  sister chromatids separate 
C)  centromeres divide 
D)  chromosomes line up in the middle of the cell 
A)  the nuclear envelope breaks up 
B)  sister chromatids separate 
C)  centromeres divide 
D)  chromosomes line up in the middle of the cell

Question 3

Which of the following will help prevent cancer and increase survival?

Accepted Answer

A)  Eat a low-fiber, low-fat diet. 
B)  Limit exercise. 
C)  Seek early detection of tumors. 
D)  Smoke only cigarettes. 
A)  Eat a low-fiber, low-fat diet. 
B)  Limit exercise. 
C)  Seek early detection of tumors. 
D)  Smoke only cigarettes.

Question 4

Chromatin consists of ________.

Accepted Answer

A)  DNA and protein 
B)  RNA and protein 
C)  protein only 
D)  DNA only 
A)  DNA and protein 
B)  RNA and protein 
C)  protein only 
D)  DNA only

Question 5

-This diagram of the human life cycle shows that ________.

Accepted Answer

A)  meiosis produces a diploid zygote 
B)  meiosis produces haploid sperm and egg cells 
C)  fertilization produces a haploid zygote 
D)  a diploid zygote undergoes meiosis to produce an adult human 
A)  meiosis produces a diploid zygote 
B)  meiosis produces haploid sperm and egg cells 
C)  fertilization produces a haploid zygote 
D)  a diploid zygote undergoes meiosis to produce an adult human

Question 6

Examine the figure below.Nucleosomes are made of ________.

Accepted Answer

A)  RNA and protein 
B)  DNA 
C)  proteins 
D)  DNA and histone proteins 
A)  RNA and protein 
B)  DNA 
C)  proteins 
D)  DNA and histone proteins

Question 7

Genetic variation is accomplished by all but one of the following.Choose the exception.

Accepted Answer

A)  the events of meiosis I 
B)  crossing over 
C)  independent assortment 
D)  the events of meiosis II 
A)  the events of meiosis I 
B)  crossing over 
C)  independent assortment 
D)  the events of meiosis II

Question 8

How many chromosomes can a gamete possess as a result of nondisjunction?

Accepted Answer

A)  n + 1 or n - 1 
B)  2n + 1 or 2n - 1 
C)  2n - 1 only 
D)  2n + 1 or n - 1 
A)  n + 1 or n - 1 
B)  2n + 1 or 2n - 1 
C)  2n - 1 only 
D)  2n + 1 or n - 1

Question 9

For a species with four pairs of chromosomes,________ chromosome combinations are possible.

Accepted Answer

A)  4 
B)  8 
C)  16 
D)  20 
A)  4 
B)  8 
C)  16 
D)  20

Question 10

Scenario Questions
Please read the following paragraph and answer the following questions.
Amanda's parents realized that her body was not developing properly about the time she was 12 years old. She was shorter than most of her friends and was not going through changes normally associated with female puberty. They took her to a doctor who initially diagnosed Amanda with Turner Syndrome because of her physical features. He ordered a karyotype that confirmed his diagnosis. Amanda was born with only one X chromosome. Although there is no specific cure, the doctor was able to treat her and correct some of the problems associated with the condition. For example, she received growth hormone to improve her growth and estrogen to help her develop the physical changes of puberty.
-If only some,but not all,of Amanda's somatic (body)cells had only one X chromosome,this could indicate that an error occurred ________.

Accepted Answer

A)  during mitosis leading to the sperm or egg that came together to form Amanda 
B)  during meiosis in the first cell division of the original cell that was Amanda (the zygote) 
C)  during meiosis which occurred in Amanda's ovaries 
D)  during mitosis which occurred at a multicellular stage of Amanda's development 
A)  during mitosis leading to the sperm or egg that came together to form Amanda 
B)  during meiosis in the first cell division of the original cell that was Amanda (the zygote) 
C)  during meiosis which occurred in Amanda's ovaries 
D)  during mitosis which occurred at a multicellular stage of Amanda's development

Question 11

What chromosomes belong to a normal human male?

Accepted Answer

A)  22 autosomes and two Y chromosomes 
B)  44 autosomes and two Y chromosomes 
C)  44 autosomes, one X chromosome, and one Y chromosome 
D)  46 autosomes, one X chromosome, and one Y chromosome 
A)  22 autosomes and two Y chromosomes 
B)  44 autosomes and two Y chromosomes 
C)  44 autosomes, one X chromosome, and one Y chromosome 
D)  46 autosomes, one X chromosome, and one Y chromosome

What is the difference between a benign and a malignant tumor?

During metaphase,________.

Which of the following will help prevent cancer and increase survival?

Chromatin consists of ________.

-This diagram of the human life cycle shows that ________.

Examine the figure below.Nucleosomes are made of ________.

Genetic variation is accomplished by all but one of the following.Choose the exception.

How many chromosomes can a gamete possess as a result of nondisjunction?

For a species with four pairs of chromosomes,________ chromosome combinations are possible.

What chromosomes belong to a normal human male?

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy from Food

Photosynthesis: Using Light to Make Food

Patterns of Inheritance

The Structure and Function of DNA

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Body's Defenses

Hormones

Reproduction and Development

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters

Exam 8: Cellular Reproduction: Cells from Cells

What is the difference between a benign and a malignant tumor?

During metaphase,________.

Which of the following will help prevent cancer and increase survival?

Chromatin consists of ________.

-This diagram of the human life cycle shows that ________.

Examine the figure below.Nucleosomes are made of ________.

Genetic variation is accomplished by all but one of the following.Choose the exception.

How many chromosomes can a gamete possess as a result of nondisjunction?

For a species with four pairs of chromosomes,________ chromosome combinations are possible.

What chromosomes belong to a normal human male?

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy from Food

Photosynthesis: Using Light to Make Food

Patterns of Inheritance

The Structure and Function of DNA

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Population Ecology

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Body's Defenses

Hormones

Reproduction and Development

Nervous, Sensory, and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

Filters