A cell:
I. Loses the property of contact inhibition
II. Shows uncontrolled proliferation
III. Invades the neighboring tissues

This cell is probably:

1. Mutated

2. Cancerous

3. Dedifferentiated

4. Apoptotic

Which of the following statements is incorrect?

1. MALT constitutes about 50% of the lymphoid tissue in human body
2. The envelope of AIDS virus encloses RNA genome
3. Cancer cells show the property of contact inhibition
4. Chronic use of drugs and alcohol can damage nervous system and liver

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

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

Cancer cells differ from normal cells by the 

1. Breakdown of regulatory mechanism

2. Loss of the property of contact inhibition

3. Attaining the property of contact inhibition

4. Both 1 & 2

Which one of the following statements is correct?

Select the correct statement

1. Cells in a malignant tumor do not show contact inhibition

2. Computed tomography scans use non-ionising radiations to study cancer of internal organs.

3. AIDS is a retroviral disease caused by unenveloped HIV.

4. Treatment of AIDS with antiretroviral drugs is completely effective and always prevents death.

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

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

Read the following statements about cancer and mark the incorrect ones