Question 1

Which of the following is not a type of proto-oncogene?

Accepted Answer

A)  the gene for cyclin D 
B)  growth factor receptor genes 
C)  the gene that codes for Ras proteins 
D)  growth factor genes 
E)  the gene for p53 
A)  the gene for cyclin D 
B)  growth factor receptor genes 
C)  the gene that codes for Ras proteins 
D)  growth factor genes 
E)  the gene for p53 E

Question 2

A mole becomes suspicious when it is greater than 6 mm in diameter.How big is 6 mm approximately?

Accepted Answer

A)  just barely visible, about the size of a pin prick 
B)  about the same as one of the letters in this question 
C)  about the size of a pencil eraser 
D)  about the size of a nickel 
E)  about the size of a quarter 
A)  just barely visible, about the size of a pin prick 
B)  about the same as one of the letters in this question 
C)  about the size of a pencil eraser 
D)  about the size of a nickel 
E)  about the size of a quarter C

Question 3

Thus far no evidence has been found that nonionizing radiation,such as the energy given off by cell phones,causes cancer.

Accepted Answer

A) True 
 B)False  True

Question 4

If a tumor suppressor gene becomes mutated,which of the following is not true?

Accepted Answer

A)  Apoptosis is less likely to occur. 
B)  The cell cycle continues when it should not. 
C)  A "gain-of function" mutation has occurred. 
D)  Genes that encode enzymes that repair DNA are not turned on. 
E)  Genes that inhibit the cell cycle are not turned on. 
A)  Apoptosis is less likely to occur. 
B)  The cell cycle continues when it should not. 
C)  A "gain-of function" mutation has occurred. 
D)  Genes that encode enzymes that repair DNA are not turned on. 
E)  Genes that inhibit the cell cycle are not turned on.

Question 5

In the case of a proto-oncogene like Ras,both copies of the gene must be mutated to increase a predisposition to cancer.

Accepted Answer

A) True 
 B)False

Question 6

Antiangiogenic drugs cause cytotoxic T cells to attack tumor cells.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is not one of the things to watch for in a mole?

Accepted Answer

A)  asymmetry 
B)  irregular border 
C)  a solid color, usually brown 
D)  larger than 6 mm 
E)  elevated above the skin surface 
A)  asymmetry 
B)  irregular border 
C)  a solid color, usually brown 
D)  larger than 6 mm 
E)  elevated above the skin surface

Question 8

Which accounts for more cancer deaths in males: bladder,pancreas,esophagus,or prostate?

Accepted Answer

A)  bladder 
B)  pancreas 
C)  esophagus 
D)  prostate 
E)  all are equal 
A)  bladder 
B)  pancreas 
C)  esophagus 
D)  prostate 
E)  all are equal

Question 9

Which of the following is not a standard therapy for cancer treatment?

Accepted Answer

A)  immunotherapy 
B)  surgery 
C)  radiation therapy 
D)  chemotherapy 
E)  all of these are standard therapies for the tretment of cancer 
A)  immunotherapy 
B)  surgery 
C)  radiation therapy 
D)  chemotherapy 
E)  all of these are standard therapies for the tretment of cancer

Question 10

A carcinogen is not a mutagen.

Accepted Answer

A) True 
 B)False

Question 11

Epstein-Barr virus is routinely isolated from cases of cervical cancers.

Accepted Answer

A) True 
 B)False

Question 12

Tumor suppressor genes are often likened to the gas pedal of a car.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is not a characteristic that distinguishes cancer cells from normal cells?

Accepted Answer

A)  Cancer cells lack differentiation. 
B)  Cancer cells have abnormal nuclei. 
C)  Cancer cells use mitosis to divide. 
D)  Cancer cells have an unlimited potential to replicate. 
E)  Cancer cells form tumors. 
A)  Cancer cells lack differentiation. 
B)  Cancer cells have abnormal nuclei. 
C)  Cancer cells use mitosis to divide. 
D)  Cancer cells have an unlimited potential to replicate. 
E)  Cancer cells form tumors.

Question 14

If the gene for telomerase is turned off in a cell,this is an indication it is a cancer cell.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following does not produce ionizing radiation?

Accepted Answer

A)  ultraviolet radiation 
B)  radon gas 
C)  nuclear fuel 
D)  X-rays 
E)  none of these are ionizing radiation 
A)  ultraviolet radiation 
B)  radon gas 
C)  nuclear fuel 
D)  X-rays 
E)  none of these are ionizing radiation

Question 16

What type of screening test could be used to determine the likelihood that someone might develop cancer?

Accepted Answer

A)  PAP test 
B)  PSA test 
C)  CEA test 
D)  genetic test 
E)  tumor marker test 
A)  PAP test 
B)  PSA test 
C)  CEA test 
D)  genetic test 
E)  tumor marker test

Question 17

Which type of test is particularly useful in analyzing tumors in tissues surrounded by bone?

Accepted Answer

A)  X-ray 
B)  CAT scan 
C)  MRI 
D)  PSA 
E)  Pap test 
A)  X-ray 
B)  CAT scan 
C)  MRI 
D)  PSA 
E)  Pap test

Question 18

What do BRCA1 and p53 have in common?

Accepted Answer

A)  Both cause breast cancer. 
B)  Both cause eye cancers. 
C)  Both are oncogenes. 
D)  Both are tumor suppressors. 
E)  Both are inherited as autosomal dominant traits. 
A)  Both cause breast cancer. 
B)  Both cause eye cancers. 
C)  Both are oncogenes. 
D)  Both are tumor suppressors. 
E)  Both are inherited as autosomal dominant traits.

Question 19

Which of the following factors can lead to cancer?

Accepted Answer

A)  radiation 
B)  BRCA1 gene 
C)  tobacco smoke 
D)  radon gas 
E)  All of these can lead to cancer. 
A)  radiation 
B)  BRCA1 gene 
C)  tobacco smoke 
D)  radon gas 
E)  All of these can lead to cancer.

Question 20

Which is responsible for more cancer deaths in women: breast,colon and rectum,pancreas,or ovary?

Accepted Answer

A)  breast 
B)  colon and rectum 
C)  pancreas 
D)  ovary 
E)  all are equal 
A)  breast 
B)  colon and rectum 
C)  pancreas 
D)  ovary 
E)  all are equal

Exam 20: Cancer

Which of the following is not a type of proto-oncogene?

A mole becomes suspicious when it is greater than 6 mm in diameter.How big is 6 mm approximately?

Thus far no evidence has been found that nonionizing radiation,such as the energy given off by cell phones,causes cancer.

If a tumor suppressor gene becomes mutated,which of the following is not true?

In the case of a proto-oncogene like Ras,both copies of the gene must be mutated to increase a predisposition to cancer.

Antiangiogenic drugs cause cytotoxic T cells to attack tumor cells.

Which of the following is not one of the things to watch for in a mole?

Which accounts for more cancer deaths in males: bladder,pancreas,esophagus,or prostate?

Which of the following is not a standard therapy for cancer treatment?

A carcinogen is not a mutagen.

Epstein-Barr virus is routinely isolated from cases of cervical cancers.

Tumor suppressor genes are often likened to the gas pedal of a car.

Which of the following is not a characteristic that distinguishes cancer cells from normal cells?

If the gene for telomerase is turned off in a cell,this is an indication it is a cancer cell.

Which of the following does not produce ionizing radiation?

What type of screening test could be used to determine the likelihood that someone might develop cancer?

Which type of test is particularly useful in analyzing tumors in tissues surrounded by bone?

What do BRCA1 and p53 have in common?

Which of the following factors can lead to cancer?

Which is responsible for more cancer deaths in women: breast,colon and rectum,pancreas,or ovary?

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