Question 1

figure 8.26 
-What is the dependent variable in figure 8.26?

Accepted Answer

A)  The volume of the tumor in humans
B)  Treatment days
C)  Treatment with endostatin
D)  Treatment with cyclophosphamide
E)  The volume of the tumor in miceF) B) and D)
G) None of the above

Question 2

Mitosis is used for all of the following except:

Accepted Answer

A)  Repair of damaged cells
B)  Growth of an organism
C)  Asexual reproduction
D)  Formation of gametes
E)  Production of genetically identical daughter cellsF) A) and D)
G) A) and C)

Question 3

Pyrimidine bases have a __________ __________ structure:

Accepted Answer

A)  Single, ring
B)  Single, triangle
C)  Double, ring
D)  Double, triangle
E)  Triple, ringF) A) and D)
G) D) and E)

Question 4

Immature cells that retain the potential to develop into multiple cell types are:

Accepted Answer

A)  Germ cells
B)  Somatic cells
C)  Stem cells
D)  Nerve cells
E)  All are correctF) All of the above
G) A) and B)

Question 5

One of two identical attached copies of a replicated chromosome defines the term:

Accepted Answer

A)  Centromere
B)  Chromatin
C)  Chromosome
D)  Nucleosome
E)  ChromatidF) A) and D)
G) A) and C)

Question 6

A discrete continuous molecule of DNA wrapped around protein defines the term:

Accepted Answer

A)  Nucleosome
B)  Chromosome
C)  Centromere
D)  Histone
E)  GenomeF) A) and B)
G) A) and D)

Question 7

The building block of nucleic acids is a(an) :

Accepted Answer

A)  Nucleotide
B)  Amino acid
C)  Glucose molecule
D)  Glycerol molecule
E)  None of the above are correctF) B) and D)
G) A) and D)

Question 8

The scientist (scientists) that first showed that protein was not the genetic information transferred by bacteria by using enzymes to digest protein is (are) :

Accepted Answer

A)  Griffith
B)  Hershey and Chase
C)  Watson and Crick
D)  Avery and Macleod
E)  Wilkins and FranklinF) A) and E)
G) D) and E)

Question 9

Variants or alternate forms of a gene are called alleles:

Accepted Answer

A) True 
 B)False

Question 10

The proteins that attach chromosomes to the mitotic spindle are:

Accepted Answer

A)  Kinetochores
B)  Chromatids
C)  Nucleosomes
D)  Centromeres
E)  HistonesF) B) and D)
G) B) and E)

Question 11

Mutations may be caused by:

Accepted Answer

A)  Errors in replication
B)  Exposure to radiation
C)  Exposure to chemicals
D)  Breakage of chromosomes
E)  All are correctF) A) and B)
G) B) and E)

Question 12

The 3' and 5' designations refer to the numbers that chemists assign to the:

Accepted Answer

A)  Hydrogen atoms of deoxyribose
B)  Oxygen atoms of deoxyribose
C)  Carbon atoms in the nitrogen bases
D)  Nitrogen atoms in the nitrogen bases
E)  Carbon atoms of deoxyriboseF) B) and C)
G) A) and E)

Question 13

A cell would pack its DNA as chromatin in preparation for:

Accepted Answer

A)  Replication
B)  Transcription
C)  Translation
D)  Splicing
E)  MitosisF) B) and D)
G) B) and C)

Question 14

figure 8.26 
-What did the researchers conclude from figure 8.26b?

Accepted Answer

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

Question 15

Cells that produce telomerase can usually divide many more times than cells that do not produce telomerase.

Accepted Answer

A) True 
 B)False

Question 16

The splitting of a cell into two daughter cells in the cell cycle is:

Accepted Answer

A)  Mitosis
B)  Interphase
C)  Cytokinesis
D)  Metaphase
E)  AnaphaseF) C) and D)
G) B) and D)

Question 17

Stem cells from a blastocyst

Accepted Answer

A)  Can only produce certain types of cells
B)  Can form any type of cell in the body
C)  Cannot survive outside of the blastocyst
D)  Cannot be formed by in vitro fertilization
E)  Can be obtained from adult tissuesF) B) and C)
G) B) and D)

Question 18

The DNA nitrogen bases that are pyrimidines are:

Accepted Answer

A)  Cytosine and guanine
B)  Uracil and cytosine
C)  Thymine and cytosine
D)  Thymine and adenine
E)  Uracil and thymineF) A) and C)
G) A) and E)

Question 19

Meiosis is a process used for:

Accepted Answer

A)  Asexual reproduction
B)  Growth of an organism
C)  Production of gametes
D)  Repair of damaged cells
E)  All are correctF) B) and D)
G) D) and E)

Question 20

Purine bases have a _________ ___________ structure:

Accepted Answer

A)  Single, ring
B)  Single, triangle
C)  Double, triangle
D)  Double, ring
E)  Triple, ringF) A) and B)
G) C) and E)

Exam 8: Dna Replication, mitosis and the Cell Cycle

The splitting of a cell into two daughter cells in the cell cycle is:

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Cells that produce telomerase can usually divide many more times than cells that do not produce telomerase.

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Stem cells from a blastocyst

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The proteins that attach chromosomes to the mitotic spindle are:

Correct AnswerverifiedShow Answer

A discrete continuous molecule of DNA wrapped around protein defines the term:

Correct AnswerverifiedShow Answer

The 3' and 5' designations refer to the numbers that chemists assign to the:

Correct AnswerverifiedShow Answer

The scientist (scientists) that first showed that protein was not the genetic information transferred by bacteria by using enzymes to digest protein is (are) :

Correct AnswerverifiedShow Answer

The building block of nucleic acids is a(an) :

Correct AnswerverifiedShow Answer

Meiosis is a process used for:

Correct AnswerverifiedShow Answer

Immature cells that retain the potential to develop into multiple cell types are:

Correct AnswerverifiedShow Answer

figure 8.26 -What is the dependent variable in figure 8.26?

Correct AnswerverifiedShow Answer

One of two identical attached copies of a replicated chromosome defines the term:

Correct AnswerverifiedShow Answer

The DNA nitrogen bases that are pyrimidines are:

Correct AnswerverifiedShow Answer

figure 8.26 -What did the researchers conclude from figure 8.26b?

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Mutations may be caused by:

Correct AnswerverifiedShow Answer

Mitosis is used for all of the following except:

Correct AnswerverifiedShow Answer

Pyrimidine bases have a __________ __________ structure:

Correct AnswerverifiedShow Answer

Variants or alternate forms of a gene are called alleles:

Correct AnswerverifiedShow Answer

Purine bases have a _________ ___________ structure:

Correct AnswerverifiedShow Answer

A cell would pack its DNA as chromatin in preparation for:

Correct AnswerverifiedShow Answer

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Pyrimidine bases have a structure:

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Purine bases have a _ ___ structure:

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