Question 1

Which of the following are permanently differentiated cells?

Accepted Answer

A) stem cells 
B) bone marrow cells 
C) most brain cells 
D) newly formed daughter cells 
A) stem cells 
B) bone marrow cells 
C) most brain cells 
D) newly formed daughter cells C

Question 2

Eukaryotic chromosomes are made up of only DNA. True or False?

Accepted Answer

A) True 
 B)False  False

Question 3

How many nucleotides are in a human chromosome?

Accepted Answer

A) two 
B) four 
C) thousands 
D) millions 
A) two 
B) four 
C) thousands 
D) millions D

Question 4

Each of your body cells:

Accepted Answer

A) contains unique genetic information. 
B) contains only the genetic information needed for that type of cell. 
C) is genetically identical to all others. 
D) changes genetically as you grow and develop. 
A) contains unique genetic information. 
B) contains only the genetic information needed for that type of cell. 
C) is genetically identical to all others. 
D) changes genetically as you grow and develop.

Question 5

In a haploid daughter cell produced by meiosis, the homologous chromosomes have:

Accepted Answer

A) multiplied. 
B) mutated. 
C) separated. 
D) remained attached. 
A) multiplied. 
B) mutated. 
C) separated. 
D) remained attached.

Question 6

Which type of eukaryotic cell contains two types of each chromosome?

Accepted Answer

A) a diploid cell 
B) a gamete 
C) a haploid cell 
D) a meiotically produced cell 
A) a diploid cell 
B) a gamete 
C) a haploid cell 
D) a meiotically produced cell

Question 7

The genetic material in bacteria consists of:

Accepted Answer

A) several circular DNA molecules. 
B) one circular RNA molecule. 
C) many rod-like DNA molecules with protein. 
D) one circular DNA molecule. 
E) DNA in mitochondria. 
A) several circular DNA molecules. 
B) one circular RNA molecule. 
C) many rod-like DNA molecules with protein. 
D) one circular DNA molecule. 
E) DNA in mitochondria.

Question 8

Cancer is essentially:

Accepted Answer

A) the binding of cyclins and Cdk's. 
B) a never-ending repetition of the S phase of the cell cycle. 
C) unregulated mitotic cell division. 
D) the creation of extra checkpoints in the cell cycle. 
A) the binding of cyclins and Cdk's. 
B) a never-ending repetition of the S phase of the cell cycle. 
C) unregulated mitotic cell division. 
D) the creation of extra checkpoints in the cell cycle.

Question 9

Inside the nucleus, the two strands of nucleic acids that exist in the form of a double helix make up the molecule called ________.

Accepted Answer

The answer of Inside the nucleus, the two strands of...

Question 10

Which of the following is the correct sequence in a cyclin-Cdk pathway?

Accepted Answer

A) growth factor-receptor-cyclin-Cdk-DNA replication 
B) growth factor-receptor-Cdk-cyclin-DNA replication 
C) growth factor-cyclin-Cdk-receptor-DNA replication 
D) receptor-cyclin-Cdk-growth factor-DNA replication 
A) growth factor-receptor-cyclin-Cdk-DNA replication 
B) growth factor-receptor-Cdk-cyclin-DNA replication 
C) growth factor-cyclin-Cdk-receptor-DNA replication 
D) receptor-cyclin-Cdk-growth factor-DNA replication

Question 11

In a eukaryotic cell that is undergoing cell division, what will become a new chromosome?

Accepted Answer

A) a centromere 
B) a chromatid 
C) a locus 
D) a telomere 
A) a centromere 
B) a chromatid 
C) a locus 
D) a telomere

Question 12

A bacterial cell splits into two new cells by a process called:

Accepted Answer

A) duplication. 
B) forming a cell plate. 
C) forming a cell furrow. 
D) mitosis. 
E) binary fission. 
A) duplication. 
B) forming a cell plate. 
C) forming a cell furrow. 
D) mitosis. 
E) binary fission.

Question 13

The ant Myrmecia pilosula has the smallest number of chromosomes possible in a eukaryote: females possess only one pair of chromosomes, and males have only one chromosome! Put another way, female M. pilosula can be described as having the haploid condition n = 1 and the diploid condition 2n = 2. Based on this scenario as well as your knowledge of gamete formation a female M. pilosula can produce gametes with ________ different sets of chromosomes.

Accepted Answer

A) two 
B) four 
C) eight 
D) millions 
A) two 
B) four 
C) eight 
D) millions

Question 14

Sexual reproduction allows for:

Accepted Answer

A) clones of parent cells to be produced more quickly and efficiently than does binary fission. 
B) random mutations to occur at a faster rate than does asexual reproduction. 
C) greater genetic diversity in offspring, compared to asexual reproduction. 
D) haploid individuals to pass their genes on to the next generation. 
A) clones of parent cells to be produced more quickly and efficiently than does binary fission. 
B) random mutations to occur at a faster rate than does asexual reproduction. 
C) greater genetic diversity in offspring, compared to asexual reproduction. 
D) haploid individuals to pass their genes on to the next generation.

Question 15

Based on this figure, what would be the consequence of exposure to a synthetic chemical in the environment that mimics the structure and shape of a growth factor?

Accepted Answer

A) Cyclin production would not be "turned on." 
B) Cdk and cyclin would not bind to each other. 
C) The cyclin-Cdk complex would still occur but would not stimulate DNA replication. 
D) DNA replication would be stimulated even though the growth factor was not present. 
A) Cyclin production would not be "turned on." 
B) Cdk and cyclin would not bind to each other. 
C) The cyclin-Cdk complex would still occur but would not stimulate DNA replication. 
D) DNA replication would be stimulated even though the growth factor was not present.

Question 16

A photograph of all the stained, prepared chromosomes in a eukaryotic cell is referred to as a:

Accepted Answer

A) centromere. 
B) chromatid. 
C) telomere. 
D) karyotype. 
A) centromere. 
B) chromatid. 
C) telomere. 
D) karyotype.

Question 17

The site on a chromosome where microtubules attach during cell division is the:

Accepted Answer

A) histone. 
B) locus. 
C) telomere. 
D) chromatid. 
E) centromere. 
A) histone. 
B) locus. 
C) telomere. 
D) chromatid. 
E) centromere.

Question 18

What is the function of the histones that are found in a chromosome?

Accepted Answer

A) They bind nucleotides together to form a single strand of DNA. 
B) They contain the genes that code for various traits. 
C) They bind the DNA into a supercoiled structure. 
D) They hold the DNA strands together in a form called the double helix. 
A) They bind nucleotides together to form a single strand of DNA. 
B) They contain the genes that code for various traits. 
C) They bind the DNA into a supercoiled structure. 
D) They hold the DNA strands together in a form called the double helix.

Question 19

All of the following may be found in a DNA nucleotide EXCEPT:

Accepted Answer

A) deoxyribose. 
B) adenine. 
C) thymine. 
D) phospholipid. 
A) deoxyribose. 
B) adenine. 
C) thymine. 
D) phospholipid.

Question 20

Cdk's are activated only when they bind to:

Accepted Answer

A) cytosine. 
B) cyclin. 
C) chromatids. 
D) centrioles. 
A) cytosine. 
B) cyclin. 
C) chromatids. 
D) centrioles.

Exam 9: The Continuity of Life: Cellular Reproduction

Which of the following are permanently differentiated cells?

Eukaryotic chromosomes are made up of only DNA. True or False?

How many nucleotides are in a human chromosome?

Each of your body cells:

In a haploid daughter cell produced by meiosis, the homologous chromosomes have:

Which type of eukaryotic cell contains two types of each chromosome?

The genetic material in bacteria consists of:

Cancer is essentially:

Inside the nucleus, the two strands of nucleic acids that exist in the form of a double helix make up the molecule called ________.

Which of the following is the correct sequence in a cyclin-Cdk pathway?

In a eukaryotic cell that is undergoing cell division, what will become a new chromosome?

A bacterial cell splits into two new cells by a process called:

Sexual reproduction allows for:

Based on this figure, what would be the consequence of exposure to a synthetic chemical in the environment that mimics the structure and shape of a growth factor?

A photograph of all the stained, prepared chromosomes in a eukaryotic cell is referred to as a:

The site on a chromosome where microtubules attach during cell division is the:

What is the function of the histones that are found in a chromosome?

All of the following may be found in a DNA nucleotide EXCEPT:

Cdk's are activated only when they bind to:

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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