The cells of the malignant tumors exhibit 
1. Metastasis 
2. Contact inhibition 
3. High differentiation 
4. Slow proliferation 

Cancer is more common in older because:
1. Their immune systems have degenerated
2. Secretion of certain hormones is decreased
3. Cell replacement is not adequate 
4. They accumulate more mutations

A normal gene that codes for proteins that help to regulate cell growth and differentiation and can, due to mutations or increased expression, lead to neoplastic transformation of cells, is called as:
1. Oncogene
2. Proto-oncogene
3. V-onc
4. Psuedogene

Proto-oncogenes are seen in :
1. Normal cells
2. Malignant cells
3. Virus infected cells 
4. Cells exposed to X-rays

DNA damage leading to neoplastic transformation can be brought about by ionizing radiations like :
1. UV rays 
2. Gamma rays 
3. Infrared waves
4. Radio waves

Consider the following statements:

I. Cancer is essentially a genetic disease caused by multiple mutational events.

II. Cancerous cells are rapidiy dividing cells that exhibit contact inhibition.

III. Metastasis is the most feared complication of any cancer

Which of the above statements are true?

1. I and II only

2. I and III only

3. II and III only

4. I, II and III

Which of the following statements is not true for cancer cells in relation to mutations?

1. Mutations destroy telomerase inhibitor

2. Mutations inactivate the cell control

3. Mutations inhibit production of telomerase

4. Mutations in proto-oncogenes accelerate the cell cycle

Which one of the following is not a property of cancerous cells, whereas the remaining

three are ?

1. They compete with normal cells for vital nutrients.

2. They do not remain confined in the area of formation 

3. They divide in an uncontrolled manner 

4. They show contact inhibition 

Which one of the following statements is correct?

1. Patients, who had undergone surgery are given cannabinoids to relieve pain

2. Benign tumours show the property of metastasis

3. Heroin accelerates body functions

4. Malignant tumours may exhibit metastasis

Electron beam therapy is a kind of radiation therapy to treat

1. Enlarged prostrate gland

2. Gall bladder stones by breaking them 

3. Certain types of cancer 

4. Kidney stones.