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

A protoxin is
1. a primitive toxin                         
2. a denatured toxin
3. toxin produced by Protozoa     
4. inactive toxin

Pathophysiology is the

1. study of physiology of pathogen
2. study of normal physiology of host
3. study of altered physiology of host
4. None of the above

The trigger for activation of toxin of Bacillus thuringiensis is

1. acidic pH of stomach
2. high temperature
3. alkaline pH of gut
4. mechanical action in the insect gut

Golden rice is:

In RNAi, genes are silenced using:

1. ss DNA     

2. ds DNA       

3. ds RNA   

4. ss RNA

The first clinical gene therapy was done for the treatment of