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

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

1. Leaf

2. Stem

3. Root

4. Flower

The process of RNA interference has been used in the development of plants resistant to 

(1) fungi

(2) viruses

(3) insects

(4) nematodes

What is an antisense technology?

(1) A cell displaying a foreign antigen used for synthesis of antigens.

(2) Production of somaclonal variants in tissue cultures.

(3) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene

(4) RNA polymerase producing DNA

RNA interference is essential for the

(1) cell proliferation

(2) cell defence

(3) cell differentiation

(4) micropropagation

Which of the following genes do not occur naturally in living organisms?

1. Bt genes
2. RNAi genes
3. Cry genes
4. Endogeneous cytoplasmic defense genes

Antisense RNA is:

(1) RNA that makes opposite sense

(2) RNA that investigators find confusing

(3) The non-coding strand of DNA molecule

(4) RNA that is complementary to certain mRNA

Which is incorrect? 

1. Specific Bt toxin genes have been isolated from Bacillus thuringiensis. 
2. Meloidegyne incognitia does not infect the roots of tobacco plants
3. In mammals insulin is synthesized as a prohormone
4. ADA deficiency can be cured by bone marrow transplantation

Dicer and Argonaut protein plays a role in