Question 1

If a cancer metastasizes,its cells travel through the blood stream and colonize other areas of the body.

Accepted Answer

A) True 
 B)False

Question 2

Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule.

Accepted Answer

A) True 
 B)False

Question 3

The genome of an organism is all of its

Accepted Answer

A) proteins. 
B) RNA. 
C) characteristics. 
D) genetic material. 
E) All answers are correct. 
A) proteins. 
B) RNA. 
C) characteristics. 
D) genetic material. 
E) All answers are correct.

Question 4

A cell condenses its DNA into ______ in preparation for mitosis.

Accepted Answer

A) centromere 
B) chromatin 
C) centrioles 
D) two nuclei 
E) chromosomes 
A) centromere 
B) chromatin 
C) centrioles 
D) two nuclei 
E) chromosomes

Question 5

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",endostatin is a 184-amino acid protein that only affects endothelial cells.What is the best explanation for this observation?

Accepted Answer

A) Endothelial cells produce endostatin. 
B) Endostatin can diffuse across the membrane of endothelial cells. 
C) Only endothelial cells are exposed to endostatin. 
D) Endothelial cells have a receptor on their cell membrane for endostatin. 
E) Endostatin enters endothelial cells by endocytosis. 
A) Endothelial cells produce endostatin. 
B) Endostatin can diffuse across the membrane of endothelial cells. 
C) Only endothelial cells are exposed to endostatin. 
D) Endothelial cells have a receptor on their cell membrane for endostatin. 
E) Endostatin enters endothelial cells by endocytosis.

Question 6

If a mutation causes the "T" base in the base sequence 5' AGTCCG 3' to be read as a "G" base,DNA replication of the mutated sequence will read

Accepted Answer

A) 3' TCCGGC 5'. 
B) 3' AGGCCG 5'. 
C) 3' CTTAAT 5'. 
D) 3' UCCGGC 5'. 
E) 3' AGTCCG 5'. 
A) 3' TCCGGC 5'. 
B) 3' AGGCCG 5'. 
C) 3' CTTAAT 5'. 
D) 3' UCCGGC 5'. 
E) 3' AGTCCG 5'.

Question 7

Which of the following does NOT increase the risk for developing cancer?

Accepted Answer

A) vigorous exercise 
B) poor diet 
C) mutated genes 
D) sun exposure 
E) tobacco 
A) vigorous exercise 
B) poor diet 
C) mutated genes 
D) sun exposure 
E) tobacco

Question 8

Sister chromatids are

Accepted Answer

A) genetically identical and attached to each other at the centromere. 
B) genetically different and attached to each other at the centromere. 
C) genetically different. 
D) genetically identical. 
E) attached to each other at the centromerE. 
A) genetically identical and attached to each other at the centromere. 
B) genetically different and attached to each other at the centromere. 
C) genetically different. 
D) genetically identical. 
E) attached to each other at the centromerE.

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

If a mutation causes the "G" base in the base sequence 5' AATGAC 3' to be read as a "T" base,DNA replication of the mutated sequence will read

Accepted Answer

A) 3' AATTAC 5'. 
B) 3' TTCCTG 5'. 
C) 3' GGCCGT 5'. 
D) 3' TTAATG 5'. 
E) 3' AATGAC 5'. 
A) 3' AATTAC 5'. 
B) 3' TTCCTG 5'. 
C) 3' GGCCGT 5'. 
D) 3' TTAATG 5'. 
E) 3' AATGAC 5'.

Question 11

The phase of mitosis in which the nuclear envelope breaks into small pieces is

Accepted Answer

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

Question 12

Before a cell divides,it must first duplicate its entire

Accepted Answer

A) cytoplasmic contents. 
B) cell membrane structure. 
C) array of enzymes. 
D) genome. 
E) cell wall. 
A) cytoplasmic contents. 
B) cell membrane structure. 
C) array of enzymes. 
D) genome. 
E) cell wall.

Question 13

During each round of replication,a mutation occurs in approximately 1% of a cell's nucleotides.

Accepted Answer

A) True 
 B)False

Question 14

Apoptosis is also called

Accepted Answer

A) replication. 
B) mitosis. 
C) programmed cell death. 
D) the cell cycle. 
E) programmed cellular reproduction. 
A) replication. 
B) mitosis. 
C) programmed cell death. 
D) the cell cycle. 
E) programmed cellular reproduction.

Exam 8: DNA Replication and Cell Division

If a cancer metastasizes,its cells travel through the blood stream and colonize other areas of the body.

Each newly replicated molecule of DNA contains one conserved strand from the original DNA molecule.

The genome of an organism is all of its

A cell condenses its DNA into ______ in preparation for mitosis.

In the section "Investigating Life: Cutting Off a Tumor's Supply Lines in the War on Cancer",endostatin is a 184-amino acid protein that only affects endothelial cells.What is the best explanation for this observation?

If a mutation causes the "T" base in the base sequence 5' AGTCCG 3' to be read as a "G" base,DNA replication of the mutated sequence will read

Which of the following does NOT increase the risk for developing cancer?

Sister chromatids are

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

If a mutation causes the "G" base in the base sequence 5' AATGAC 3' to be read as a "T" base,DNA replication of the mutated sequence will read

The phase of mitosis in which the nuclear envelope breaks into small pieces is

Before a cell divides,it must first duplicate its entire

During each round of replication,a mutation occurs in approximately 1% of a cell's nucleotides.

Apoptosis is also called

Scientific Study of Life

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DNA Structure and Gene Function

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