Which of the following statements is not true for cancer cells in relation to mutations? [2016]
Mutations inactivate the cell control.
Mutations inhibit production of telomerase.
Mutations in proto-oncogenes accelerate the cell cycle.
Mutations destroy telomerase inhibitor.
Which are correct:
A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.
B. Chemotherapeutics drugs are used to kill non-cancerous cells.
C. -interferon activate the cancer patients’ immune system and helps in destroying the tumour.
D. Chemotherapeutic drugs are biological response modifiers.
E. In the case of leukaemia blood cell counts are decreased.
Choose the correct answer from the options given below: [2025]
B and D only
D and E only
C and D only
A and C only
(4)
Statements A and C are correct while statements B, D and E are incorrect.
Chemotherapeutic drugs are used to kill cancerous cells.
In case of leukaemia, blood cell counts are increased.
-interferons are biological response modifiers.
Neoplastic characteristics of cells refer to : [2025]
A. A mass of proliferating cell
B. Rapid growth of cells
C. Invasion and damage to the surrounding tissue
D. Those confined to original location
Choose the correct answer from the options given below:
A, B only
A, B, C only
A, B, D only
B, C, D only
(2)
The correct answer will include : A, B and C only.
A neoplasm is a general term for any abnormal growth of tissue.
Neoplastic characteristics of cells refer to
(1) A mass of proliferating cell.
(2) Rapid growth of cells.
(3) Invasion and damage to the surrounding tissue.
Cancer specifically refers to malignant neoplasms, which are cancerous and invasive.
Benign tumours remain confined to their original location. Thus, D is not included in the answer.
The malignant tumours, on the other hand are a mass of proliferating cells called neoplastic or tumour cells. These cells grow very rapidly, invading and damaging the surrounding normal tissues.
