Question 1

Mutations may be caused by

Accepted Answer

A) errors in prokaryotic replication. 
B) exposure to radiation. 
C) exposure to chemicals. 
D) errors in eukaryotic replication. 
E) All answers are correct. 
A) errors in prokaryotic replication. 
B) exposure to radiation. 
C) exposure to chemicals. 
D) errors in eukaryotic replication. 
E) All answers are correct.

Question 2

A part of a chromosome that attaches sister chromatids to each other defines the term

Accepted Answer

A) chromatin. 
B) nucleosome. 
C) centromere. 
D) histone. 
E) None of the answers are correct 
A) chromatin. 
B) nucleosome. 
C) centromere. 
D) histone. 
E) None of the answers are correct

Question 3

If one strand of a DNA molecule has the base sequence of 5' CGGCATTA 3' the complementary strand of DNA will read

Accepted Answer

A) 3' CGGCATTA 5'. 
B) 3' ATTACGGC 5'. 
C) 3' GCCGTUUT 5'. 
D) 3' GCCGTAAT 5'. 
E) 3' TAATGCCG 5'. 
A) 3' CGGCATTA 5'. 
B) 3' ATTACGGC 5'. 
C) 3' GCCGTUUT 5'. 
D) 3' GCCGTAAT 5'. 
E) 3' TAATGCCG 5'.

Question 4

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",what hypothesis were the researchers testing by treating tumors with endostatin and the standard chemotherapy drug?

Accepted Answer

A) Endostatin works on endothelial cells,and therefore natural selection for resistance will not occur in tumor cells. 
B) Endostatin works on tumor cells,and therefore natural selection for resistance will not occur in endothelial cells. 
C) The standard chemotherapy drug works on endothelial cells,and therefore natural selection for resistance will not occur in tumor cells. 
D) The standard chemotherapy drug works on tumor cells,and therefore natural selection for resistance will not occur in endothelial cells. 
A) Endostatin works on endothelial cells,and therefore natural selection for resistance will not occur in tumor cells. 
B) Endostatin works on tumor cells,and therefore natural selection for resistance will not occur in endothelial cells. 
C) The standard chemotherapy drug works on endothelial cells,and therefore natural selection for resistance will not occur in tumor cells. 
D) The standard chemotherapy drug works on tumor cells,and therefore natural selection for resistance will not occur in endothelial cells.

Question 5

The two main stages of the eukaryotic cell cycle are

Accepted Answer

A) interphase and cytokinesis. 
B) interphase and mitosis. 
C) mitosis and cytokinesis. 
D) interphase and prophase. 
E) mitosis and meiosis. 
A) interphase and cytokinesis. 
B) interphase and mitosis. 
C) mitosis and cytokinesis. 
D) interphase and prophase. 
E) mitosis and meiosis.

Question 6

The plant cell in the image labeled "d" is in the cell cycle stage

Accepted Answer

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

Question 7

The enzyme that adds nucleotides to form new strands of DNA is

Accepted Answer

A) interphase. 
B) prophase. 
C) ligase. 
D) helicase. 
E) DNA polymerasE. 
A) interphase. 
B) prophase. 
C) ligase. 
D) helicase. 
E) DNA polymerasE.

Question 8

Binary fission produces ______ cells,mitosis produces ______ cells,and meiosis produces ______ cells.

Accepted Answer

A) prokaryotic;eukaryotic body;eukaryotic sex 
B) genetic;body;sex 
C) eukaryotic;prokaryotic body;prokaryotic sex 
D) genetically-different;genetically-identical;genetically-different 
E) genetically-identical;genetically-different;genetically-identical 
A) prokaryotic;eukaryotic body;eukaryotic sex 
B) genetic;body;sex 
C) eukaryotic;prokaryotic body;prokaryotic sex 
D) genetically-different;genetically-identical;genetically-different 
E) genetically-identical;genetically-different;genetically-identical

Question 9

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",the standard chemotherapy drug forms crosslinks between the two strands of DNA in a chromosome.How is this effective in chemotherapy?

Accepted Answer

A) It blocks cytokinesis. 
B) It delays DNA replication. 
C) It activates the cell cycle. 
D) It activates cytokinesis. 
E) It aids spindle fibers in anaphasE. 
A) It blocks cytokinesis. 
B) It delays DNA replication. 
C) It activates the cell cycle. 
D) It activates cytokinesis. 
E) It aids spindle fibers in anaphasE.

Question 10

In an asexual life cycle,cells reproduce by

Accepted Answer

A) meiosis. 
B) fertilization. 
C) meiosis and fertilization. 
D) mitosis. 
E) All answers are correct. 
A) meiosis. 
B) fertilization. 
C) meiosis and fertilization. 
D) mitosis. 
E) All answers are correct.

Question 11

How does the space between our fingers arise?

Accepted Answer

A) The cells form by apoptosis. 
B) Mitosis of the cells is blocked. 
C) The cells die by apoptosis. 
D) Meiosis of the cells is blockeD. 
E) The cells become part of the fingers. 
A) The cells form by apoptosis. 
B) Mitosis of the cells is blocked. 
C) The cells die by apoptosis. 
D) Meiosis of the cells is blockeD. 
E) The cells become part of the fingers.

Question 12

The phase of mitosis in which the nuclear envelope begins to reform around chromosomes is

Accepted Answer

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

Question 13

DNA's sugar-phosphate backbones are joined with

Accepted Answer

A) ionic bonds. 
B) hydrogen bonds. 
C) weak chemical bonds. 
D) covalent bonds. 
A) ionic bonds. 
B) hydrogen bonds. 
C) weak chemical bonds. 
D) covalent bonds.

Question 14

The first sign of cytokinesis in an animal cell is the formation of a

Accepted Answer

A) cell plate. 
B) cleavage furrow. 
C) cell wall. 
D) nucleolus. 
E) nuclear envelopE. 
A) cell plate. 
B) cleavage furrow. 
C) cell wall. 
D) nucleolus. 
E) nuclear envelopE.

Question 15

The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is

Accepted Answer

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

Question 16

The correct sequence for the phases of the eukaryotic cell cycle is

Accepted Answer

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

Question 17

When DNA replicates

Accepted Answer

A) the original DNA is not affected and a new double-stranded DNA is made from two new strands of DNA. 
B) one strand of the original DNA ends up in each of the new DNA molecules. 
C) the original DNA unwinds,and multiple copies of a region are transcribed before the DNA closes back up. 
D) transcription factors determine where to begin DNA replication. 
E) a cell that was diploid (2N)will now be tetraploid (4N). 
A) the original DNA is not affected and a new double-stranded DNA is made from two new strands of DNA. 
B) one strand of the original DNA ends up in each of the new DNA molecules. 
C) the original DNA unwinds,and multiple copies of a region are transcribed before the DNA closes back up. 
D) transcription factors determine where to begin DNA replication. 
E) a cell that was diploid (2N)will now be tetraploid (4N).

Question 18

The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is

Accepted Answer

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

Question 19

During cytokinesis of a plant cell,the cell divides by forming a cleavage furrow.

Accepted Answer

A) True 
 B)False

Question 20

In a sexual life cycle,a zygote (fertilized egg)grows to an adult by

Accepted Answer

A) meiosis. 
B) fertilization. 
C) meiosis and fertilization. 
D) mitosis. 
E) All answers are correct. 
A) meiosis. 
B) fertilization. 
C) meiosis and fertilization. 
D) mitosis. 
E) All answers are correct.

Exam 8: DNA Replication and Cell Division

Mutations may be caused by

A part of a chromosome that attaches sister chromatids to each other defines the term

If one strand of a DNA molecule has the base sequence of 5' CGGCATTA 3' the complementary strand of DNA will read

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",what hypothesis were the researchers testing by treating tumors with endostatin and the standard chemotherapy drug?

The two main stages of the eukaryotic cell cycle are

The plant cell in the image labeled "d" is in the cell cycle stage

The enzyme that adds nucleotides to form new strands of DNA is

Binary fission produces ______ cells,mitosis produces ______ cells,and meiosis produces ______ cells.

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",the standard chemotherapy drug forms crosslinks between the two strands of DNA in a chromosome.How is this effective in chemotherapy?

In an asexual life cycle,cells reproduce by

How does the space between our fingers arise?

The phase of mitosis in which the nuclear envelope begins to reform around chromosomes is

DNA's sugar-phosphate backbones are joined with

The first sign of cytokinesis in an animal cell is the formation of a

The phase of mitosis in which the chromosomes condense and centrosomes move to opposite poles of the cell is

The correct sequence for the phases of the eukaryotic cell cycle is

When DNA replicates

The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is

During cytokinesis of a plant cell,the cell divides by forming a cleavage furrow.

In a sexual life cycle,a zygote (fertilized egg)grows to an adult by

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Population Ecology

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

Regulating Temperature, nutrients, and Body Fluids

The Immune System

Animal Reproduction and Development

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Binary fission produces cells,mitosis produces cells,and meiosis produces __ cells.