Question 1

Figuer:
This diagram shows the steps in mitosis, with labels to reference in the questions below. 
-The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is

Accepted Answer

A)   E, which is metaphase.
B)   B, which is prophase.
C)   D, which is anaphase.
D)   A, which is prometaphase.
E)   E, which is telophase.F) A) and E)
G) A) and B)

Question 2

A replicated chromosome consists of two sister chromatids.

Accepted Answer

A) True 
 B)False

Question 3

In biology lab,as you are examining plant root cells,you are having difficulty determining what you are seeing as in the image below.You can still see chromosome strands,as they are in compact bundles.You think this should be telophase,because the chromosomes aren't being actively pulled apart,but when does cytokinesis start? The first sign that cytokinesis has started is the formation of a

Accepted Answer

A)   nucleolus.
B)   nuclear envelope.
C)   spindle fiber.
D)   cell plate.
E)   cleavage furrow.F) C) and D)
G) B) and C)

Question 4

While in the biology lab,you observe,in both plant and animal cells,that some single cells are splitting into two daughter cells,in the process of

Accepted Answer

A)   metaphase.
B)   mitosis.
C)   cytokinesis.
D)   binary fission.
E)   anaphase.F) D) and E)
G) C) and D)

Question 5

The enzyme telomerase adds DNA to the ends of chromosomes.Why would cancer cells express high levels of telomerase?

Accepted Answer

A)   Longer chromosomes have more active genes.
B)   Telomerase is a tumor suppressor.
C)   As telomeres get shorter, a cell loses the ability to divide.
D)   The longer a chromosome is, the more genes a cancer cell will have.
E)   It allows the chromosomes to be replicated more rapidly.F) A) and B)
G) C) and D)

Question 6

The enzyme that joins Okazaki fragments is

Accepted Answer

A)   primase.
B)   DNA polymerase.
C)   helicase.
D)   ATP synthase.
E)   ligase.F) A) and B)
G) C) and E)

Question 7

The component of the DNA nucleotides that varies to produce an organism's genetic information is the deoxyribose.

Accepted Answer

A) True 
 B)False

Question 8

Figuer:
This diagram shows the steps in mitosis, with labels to reference in the questions below. 
-The phase of mitosis in which the nuclear envelope breaks into small pieces is

Accepted Answer

A)   C, which is metaphase.
B)   B, which is prometaphase.
C)   D, which is anaphase.
D)   C, which is telophase.
E)   B, which is prophase.F) A) and D)
G) None of the above

Question 9

Figuer:
This diagram shows the steps in mitosis, with labels to reference in the questions below. 
-The proteins to which the mitotic spindle attaches on a chromosome are

Accepted Answer

A)   kinetochores.
B)   chromatids.
C)   nucleosomes.
D)   centromeres.
E)   histones.F) A) and D)
G) A) and C)

Question 10

The eukaryotic cell will complete the ___ portion of the cell cycle in order to___

Accepted Answer

A)   interphase; build the mitotic spindle and metaphase plate between original and replicate chromosome groups.
B)   cytokinesis; move the centrioles, centrosomes, and mitotic spindle into position to pull chromosomes apart.
C)   mitosis; divide the original and replicated chromosomes.
D)   synthesis; build the two new daughter cells from the original one cell.
E)   binary fission; divide the original and replicated chromosomes.F) C) and D)
G) B) and D)

Question 11

The building block of nucleic acids is a(n)

Accepted Answer

A)   glucose molecule.
B)   None of the answer choices are correct.
C)   nucleotide.
D)   glycerol molecule.
E)   amino acid.F) B) and C)
G) A) and B)

Question 12

In a sexual life cycle,a zygote grows to an adult by

Accepted Answer

A)   fertilization.
B)   mitosis.
C)   meiosis.
D)   meiosis and fertilization.
E)   All of the answer choices are correct.F) C) and E)
G) B) and E)

Question 13

The genome of an organism is all of its

Accepted Answer

A)   genetic material.
B)   RNA.
C)   characteristics.
D)   All of the answer choices are correct.
E)   proteins.F) A) and B)
G) C) and D)

Question 14

In an asexual life cycle,cells reproduce by

Accepted Answer

A)   meiosis and fertilization.
B)   meiosis.
C)   All of the answer choices are correct.
D)   fertilization.
E)   mitosis.F) A) and B)
G) A) and C)

Question 15

An embryo fish is in its egg,without fully developed tissues and organs to survive outside the egg.The embryo has a large number of cells undergoing mitosis for the purpose of

Accepted Answer

A)   production of new cells that can differentiate and specialize for different functions.
B)   replication of new DNA copies, so that meiosis will further grow the embryo.
C)   sexual reproduction of gametes, to produce new offspring.
D)   asexual reproduction, to produce larger numbers of embryos, so that some will survive.
E)   fertilization of the gametes, so the embryo can continue growing and hatch.F) C) and D)
G) C) and E)

Question 16

Any change in a cell's DNA sequence is a mutation.

Accepted Answer

A) True 
 B)False

Question 17

Figuer: 
-What did the researchers conclude based on the data in figure (b) ?

Accepted Answer

A)   Endostatin shrunk tumors without development of resistance.
B)   Cyclophosphamide slowed the growth of tumors but resistance developed.
C)   Cyclophosphamide slowed the growth of tumors without development of resistance.
D)   Tumors in untreated cells shrank in size.
E)   Endostatin shrunk tumors but resistance developed.F) A) and B)
G) C) and E)

Question 18

Figuer:
This diagram shows the steps in mitosis, with labels to reference in the questions below. 
-The correct sequence for the phases of mitosis,shown in correct sequence in this diagram,is

Accepted Answer

A)   interphase - metaphase - anaphase - prophase - telophase.
B)   prophase - prometaphase - metaphase - anaphase - telophase.
C)   prometaphase - prophase - metaphase - anaphase - telophase.
D)   interphase - prophase - metaphase - anaphase - telophase.
E)   prophase - metaphase - prometaphase - anaphase - telophase.F) B) and D)
G) B) and C)

Question 19

Figuer:
This diagram shows the steps in mitosis, with labels to reference in the questions below. 
-The phase of mitosis in which the chromosomes are aligned along the equator of the cell is

Accepted Answer

A)   A, which is prophase.
B)   A, which is prometaphase.
C)   D, which is anaphase.
D)   E, which is telophase.
E)   C, which is metaphase.F) A) and B)
G) B) and C)

Question 20

By ignoring a checkpoint in the cell cycle,a cancer cell may

Accepted Answer

A)   pull chromosomes apart during anaphase.
B)   divide before its DNA is completely replicated.
C)   align chromosomes on the equator of the cell during metaphase.
D)   divide after mutations are fixed.
E)   condense its chromosomes before mitosis.F) B) and C)
G) C) and D)

Exam 8: DNA Replication, mitosis, and the Cell Cycle

The eukaryotic cell will complete the _ portion of the cell cycle in order to_

Correct Answer
verified

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The correct sequence for the phases of mitosis,shown in correct sequence in this diagram,is

Correct Answer
verified

In a sexual life cycle,a zygote grows to an adult by

Correct Answer
verified

The enzyme telomerase adds DNA to the ends of chromosomes.Why would cancer cells express high levels of telomerase?

Correct Answer
verified

By ignoring a checkpoint in the cell cycle,a cancer cell may

Correct Answer
verified

The enzyme that joins Okazaki fragments is

Correct Answer
verified

The building block of nucleic acids is a(n)

Correct Answer
verified

Figuer: -What did the researchers conclude based on the data in figure (b) ?

Correct Answer
verified

The component of the DNA nucleotides that varies to produce an organism's genetic information is the deoxyribose.

Correct Answer
verified

Any change in a cell's DNA sequence is a mutation.

Correct Answer
verified

In an asexual life cycle,cells reproduce by

Correct Answer
verified

A replicated chromosome consists of two sister chromatids.

Correct Answer
verified

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The proteins to which the mitotic spindle attaches on a chromosome are

Correct Answer
verified

An embryo fish is in its egg,without fully developed tissues and organs to survive outside the egg.The embryo has a large number of cells undergoing mitosis for the purpose of

Correct Answer
verified

While in the biology lab,you observe,in both plant and animal cells,that some single cells are splitting into two daughter cells,in the process of

Correct Answer
verified

The genome of an organism is all of its

Correct Answer
verified

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the nuclear envelope breaks into small pieces is

Correct Answer
verified

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is

Correct Answer
verified

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the chromosomes are aligned along the equator of the cell is

Correct Answer
verified

Correct Answer
verified

Exam 8: DNA Replication, mitosis, and the Cell Cycle

The eukaryotic cell will complete the ___ portion of the cell cycle in order to___

Correct AnswerverifiedShow Answer

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The correct sequence for the phases of mitosis,shown in correct sequence in this diagram,is

Correct AnswerverifiedShow Answer

In a sexual life cycle,a zygote grows to an adult by

Correct AnswerverifiedShow Answer

The enzyme telomerase adds DNA to the ends of chromosomes.Why would cancer cells express high levels of telomerase?

Correct AnswerverifiedShow Answer

By ignoring a checkpoint in the cell cycle,a cancer cell may

Correct AnswerverifiedShow Answer

The enzyme that joins Okazaki fragments is

Correct AnswerverifiedShow Answer

The building block of nucleic acids is a(n)

Correct AnswerverifiedShow Answer

Figuer: -What did the researchers conclude based on the data in figure (b) ?

Correct AnswerverifiedShow Answer

The component of the DNA nucleotides that varies to produce an organism's genetic information is the deoxyribose.

Correct AnswerverifiedShow Answer

Any change in a cell's DNA sequence is a mutation.

Correct AnswerverifiedShow Answer

In an asexual life cycle,cells reproduce by

Correct AnswerverifiedShow Answer

A replicated chromosome consists of two sister chromatids.

Correct AnswerverifiedShow Answer

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The proteins to which the mitotic spindle attaches on a chromosome are

Correct AnswerverifiedShow Answer

An embryo fish is in its egg,without fully developed tissues and organs to survive outside the egg.The embryo has a large number of cells undergoing mitosis for the purpose of

Correct AnswerverifiedShow Answer

While in the biology lab,you observe,in both plant and animal cells,that some single cells are splitting into two daughter cells,in the process of

Correct AnswerverifiedShow Answer

The genome of an organism is all of its

Correct AnswerverifiedShow Answer

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the nuclear envelope breaks into small pieces is

Correct AnswerverifiedShow Answer

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the centromeres split and sister chromatids are pulled to opposite poles of the cell is

Correct AnswerverifiedShow Answer

Figuer: This diagram shows the steps in mitosis, with labels to reference in the questions below. -The phase of mitosis in which the chromosomes are aligned along the equator of the cell is

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The eukaryotic cell will complete the _ portion of the cell cycle in order to_

Correct Answer
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