Question: 120. Which are correct:
A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.
B. Chemotherapeutics drugs are used to kill noncancerous cells.
C. \alpha-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 cells counts are decreased.
Choose the correct answer from the option given below:
(1) B and D only
(2) D and E only
(3) C and D only
(4) A and C only
Answer: Option (4)
Explanation:
Computed tomography and magnetic resonance imaging are advanced imaging techniques used to detect the presence, location, and extent of cancers in internal organs.
Chemotherapeutic drugs are designed to kill rapidly dividing cancerous cells, although they may also affect some normal cells; hence they are not used to specifically kill noncancerous cells.
\alpha-interferon is a biological response modifier that activates the immune system of cancer patients and helps in destroying tumour cells.
Chemotherapeutic drugs are chemical substances and are not classified as biological response modifiers.
In leukaemia, there is uncontrolled proliferation of white blood cells, leading to an increase in abnormal white blood cell count rather than a decrease.
Therefore, only statements A and C are correct.