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

ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?
1. Adenosine deoxyaminase     
2. Adenosine deaminase
3. Aspartate deaminase             
4. Arginine deaminase

Silencing of a gene could be achieved through the use of
1. RNAi only
2. antisense RNA only
3. both RNAi and antisense RNA 
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

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

The site of production of ADA in the body is:

1. erythrocytes                               

2. lymphocytes                         

3. blood plasma                             

4. osteocytes

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

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

GEAC stands for