Question 1

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

Accepted Answer

A)  3' ATGTGCC 5'. 
B)  3' TACACGG 5'. 
C)  3' UACACGG 5'. 
D)  3' CGTGTAA 5'. 
E)  3' GGCACAT 5'. 
A)  3' ATGTGCC 5'. 
B)  3' TACACGG 5'. 
C)  3' UACACGG 5'. 
D)  3' CGTGTAA 5'. 
E)  3' GGCACAT 5'. B

Question 2

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. A

Question 3

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. C

Question 4

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

Accepted Answer

A)  mitosis. 
B)  interphase. 
C)  cytokinesis. 
D)  metaphase. 
E)  anaphase. 
A)  mitosis. 
B)  interphase. 
C)  cytokinesis. 
D)  metaphase. 
E)  anaphase.

Question 5

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.

Question 6

Eukaryotic chromosomes become visible with a light microscope before cell division because they

Accepted Answer

A)  become less tightly wound. 
B)  become more tightly wound. 
C)  increase in length. 
D)  decrease in length. 
E)  combine with RNA. 
A)  become less tightly wound. 
B)  become more tightly wound. 
C)  increase in length. 
D)  decrease in length. 
E)  combine with RNA.

Question 7

One of two identical attached copies of a replicated chromosome is called a

Accepted Answer

A)  centromere. 
B)  chromatin. 
C)  chromosome. 
D)  nucleosome. 
E)  chromatid. 
A)  centromere. 
B)  chromatin. 
C)  chromosome. 
D)  nucleosome. 
E)  chromatid.

Question 8

A mutation in a gene controlling a cell cycle checkpoint could pose a significant risk of cancer.

Accepted Answer

A) True 
 B)False

Question 9

Bacteria and archaeans do not receive new genetic material from binary fission,but from mutations and gene transfers.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is correct about both binary fission and mitosis?

Accepted Answer

A)  Both are asexual forms of cell reproduction. 
B)  Both result in genetically identical cells. 
C)  Both replicate the DNA before the cell splits. 
D)  Both result in two daughter cells. 
E)  All answers are correct. 
A)  Both are asexual forms of cell reproduction. 
B)  Both result in genetically identical cells. 
C)  Both replicate the DNA before the cell splits. 
D)  Both result in two daughter cells. 
E)  All answers are correct.

Question 11

An abnormal mass of tissue is a tumor.

Accepted Answer

A) True 
 B)False

Question 12

DNA and its associated proteins in the nucleus is referred to as the

Accepted Answer

A)  centromere. 
B)  nucleosome. 
C)  histone. 
D)  chromatin. 
E)  microtubule. 
A)  centromere. 
B)  nucleosome. 
C)  histone. 
D)  chromatin. 
E)  microtubule.

Question 13

No real risk of cancer comes from an organism's environment.

Accepted Answer

A) True 
 B)False

Question 14

If you were putting description on a model,you would put a card saying "a discrete continuous molecule of DNA wrapped around protein" on a model of a

Accepted Answer

A)  nucleosome. 
B)  chromosome. 
C)  centromere. 
D)  histone. 
E)  genome. 
A)  nucleosome. 
B)  chromosome. 
C)  centromere. 
D)  histone. 
E)  genome.

Question 15

Bypassing a checkpoint in the cell cycle may result in a cancer cell

Accepted Answer

A)  dividing after mutations are fixed. 
B)  continuing to divide and replicate with faulty DNA. 
C)  condensing its chromosomes before mitosis. 
D)  aligning chromosomes on the equator of the cell during metaphase. 
E)  pulling chromosomes apart during anaphase. 
A)  dividing after mutations are fixed. 
B)  continuing to divide and replicate with faulty DNA. 
C)  condensing its chromosomes before mitosis. 
D)  aligning chromosomes on the equator of the cell during metaphase. 
E)  pulling chromosomes apart during anaphase.

Question 16

Strands of DNA are joined by

Accepted Answer

A)  hydrogen bonds. 
B)  covalent bonds. 
C)  ionic bonds. 
D)  phosphodiester bonds. 
A)  hydrogen bonds. 
B)  covalent bonds. 
C)  ionic bonds. 
D)  phosphodiester bonds.

Question 17

All of the following refer to mitosis,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 cells. 
A)  repair of damaged cells. 
B)  growth of an organism. 
C)  asexual reproduction. 
D)  formation of gametes. 
E)  production of genetically identical daughter cells.

Question 18

The correct sequence for the phases of mitosis is

Accepted Answer

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

Question 19

The component of the cytoskeleton that attaches to the chromosomes to separate them during anaphase is the

Accepted Answer

A)  Golgi apparatus. 
B)  centromere. 
C)  centrosome. 
D)  mitotic spindle. 
E)  kinetochore. 
A)  Golgi apparatus. 
B)  centromere. 
C)  centrosome. 
D)  mitotic spindle. 
E)  kinetochore.

Question 20

A nucleosome consists of

Accepted Answer

A)  a stretch of DNA and histones. 
B)  a stretch of DNA only. 
C)  a stretch of RNA only. 
D)  a stretch of RNA and a ribosome. 
E)  histones only. 
A)  a stretch of DNA and histones. 
B)  a stretch of DNA only. 
C)  a stretch of RNA only. 
D)  a stretch of RNA and a ribosome. 
E)  histones only.

Exam 8: DNA Replication,Binary Fission,and Mitosis

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

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

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

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

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

Eukaryotic chromosomes become visible with a light microscope before cell division because they

One of two identical attached copies of a replicated chromosome is called a

A mutation in a gene controlling a cell cycle checkpoint could pose a significant risk of cancer.

Bacteria and archaeans do not receive new genetic material from binary fission,but from mutations and gene transfers.

Which of the following is correct about both binary fission and mitosis?

An abnormal mass of tissue is a tumor.

DNA and its associated proteins in the nucleus is referred to as the

No real risk of cancer comes from an organism's environment.

If you were putting description on a model,you would put a card saying "a discrete continuous molecule of DNA wrapped around protein" on a model of a

Bypassing a checkpoint in the cell cycle may result in a cancer cell

Strands of DNA are joined by

All of the following refer to mitosis,except

The correct sequence for the phases of mitosis is

The component of the cytoskeleton that attaches to the chromosomes to separate them during anaphase is the

A nucleosome consists of

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