17–18 Indicate whether each of the following statements is true (T) or false (F)

Question

17–18 Indicate whether each of the following statements is true (T) or false (F).

___ a. A mutation in only one copy of a tumor suppressor gene can cause malignant transformation.

___ b. A neoplasm is characterized by abnormal cell division, which can cause disruption to organ function.

___ c. Malignant tumors are often encapsulated and are limited in size.

___ d. Most cancers develop in tissues that are actively undergoing division.

___ e. Cancers of immune system cells that form solid tumors are known as sarcomas.

Explanation / Answer

a. False

Every somatic cell contains two copies of gene and if mutation is occur in one gene than second gene will express their protein. A two-hit hypothesis was given in this context and both the allele or gene product should affect for cancer.

b. False

Neoplasm is characterized by the rapid cell growth. Neoplasm tumors are not life-threatning.

c. False

Malignant tumors are not encapsulated and they spread and invade. Benign tumors are encapsulated in fibrous connective tissue.

d. True

Organ that come in carcinogenic substance are showing high cell division rate.

e. True

Because this type of cancer occur in soft tissue therefore it called sarcoma.ie lymphangiosarcoma and lymphosarcoma

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.