Micro-propagation is

1.	propagation of microbes in vitro
2.	propagation of plants in vitro
3.	propagation of cells in vitro
4.	growing plants on smaller scale

Protoplast is

1. another name for protoplasm

2. an animal cell

3. a plant cell without a cell wall

4. a plant cell

To isolate protoplast, one needs

1. pectinase

2. cellulase

3. both pectinase and cellulase

4. chitinase

Bt cotton is not
1. a GM plant                                           
2. insect resistant
3. a bacterial gene expressing system 
4. resistant to all pesticides

C-peptide of human insulin is

GEAC stands for

α-1 antitrypsin is
1. an antacid                           
2. an enzyme
3. used to treat arthritis       
4. used to treat emphysema

A probe, which is a molecule, used to locate homologous sequences in a mixture of DNA or RNA molecules could be:
1. an ssRNA         
2. an ssDNA
3. either RNA or DNA               
4. can be ssDNA but not ssRNA

Choose the correct option regarding Retrovirus:

1. a RNA virus that can synthesis DNA during infection
2. a DNA virus that synthesises RNA during infection
3. a ssDNA virus
4. a dsRNA virus

The site of production of ADA in the body is:

1. erythrocytes                               

2. lymphocytes                         

3. blood plasma                             

4. osteocytes