RNAi is a mechanism to silence genes with the help of
1. ssRNA
2. dsRNA
3. ssDNA
4. dsDNA
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.
(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
a. Antisense RNA
b. RNA interference
c. cDNA therapy
d. Gene therapy