QUESTION 1 The most lethal form of cancer in the U.S. is? breast cancer prostate

Question

QUESTION 1

The most lethal form of cancer in the U.S. is?

breast cancer

prostate cancer

lung cancer

colon cancer

1 points   

QUESTION 2

The dramatic increase in cancer incidence with age suggests that?

cancer develops as a consequence of multiple abnormalities that accumulate over many years.

cancer is caused by old age

cancer arises primarily in differentiated, nondividing tissues

genetic factors are not involved

1 points   

QUESTION 3

Estrogen increases the risk of breast and uterine cancers because it?

causes DNA damage

acts as a tumor promoter by stimulating cell proliferation

inhibits differentiation

turns on the ras oncogene

1 points   

QUESTION 4

A tumor of epithelial cells is a?

adenoma

sarcoma

carcinoma

leukemia

1 points   

QUESTION 5

A tumor is?

a benign growth

a malignant growth

any abnormal growth of cells

a cancerous growth

1 points   

QUESTION 6

Cancers initiate from a?

few cells

a single cell

single organ

single tissue

1 points   

QUESTION 7

Cancer is usually caused by?

a cancer virus

an inherited oncogene

the stepwise breakdown of normal cell regulatory processes

X-rays

1 points   

QUESTION 8

Ultraviolet radiation increases the likelihood of a cell's become malignant primarily because UV radiation?

induces melanocytes to express more melanin

causes breaks in DNA

makes RNA Polymerase more error-prone

causes DNA mutations

breast cancer

prostate cancer

lung cancer

colon cancer

Explanation / Answer

QUESTION 1 The most lethal form of cancer in the U.S. is? breast cancer prostate

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