To protect tobacco plants against Meloidegyne incognita using RNAi, nematode specific genes were introduced in the plant using:

1. Transposons

2. Retrotransposons

3. Virus with RNA genome 

4. Agrobacterium

A permanent cure for ADA deficiency could be:

Polymerase Chain Reaction is not used in :

If gene isolate from marrow cells producing ADA is introduced into cells at early embryonic stage, it could be a permanant cure of ADA deficiency because the early embryonic cells :

1. Are more differentiated than the later stage cells

2. Are constantly dividing and do not get differentiated 

3. Are easy to manipulate than the later stage cells

4. Are virtually immortal 

To test the safety of polio vaccine, the organisms used are transgenic :

1. Mice

2. Pigs

3. Monkey 

4. Cattle

If the goal were to create a plant resistant to an insecticide, which cell-based plant technology would be most effective ?

Which kind of therapy was given in 1990 to a four-year-old girl with Adenosine Deaminase (ADA) deficiency?

The two polypeptides of human insulin are linked together by

(1) phosphodiester bonds

(2) covalent bonds

(3) disulphide bridges

(4) hydrogen bonds

Which part of the tobacco plant is infected by Meloidegyne incognitia?

1. Leaf

2. Stem

3. Root

4. Flower

The introduction of tDNA into plants involves

1. infection of the plant by Agrobacterium tumefaciens

2. altering the pH of soil, heat-shocking the plants

3. exposing the plants to cold for a brief period

4. allowing the plant roots to stand in water