Question

(A) Source of sense &- Transposon
Antisense RNA gene
(B) Host of sense &- Tobacco
Antisense RNA gene
(C) Site of iRNA - Tobacco
Production
(D) Site of pre RISC - Meloidegyne
formation
(E) Site of pre RISC to RISC &- Meloidegyne
conversion
(F) Destruction of- Gastric tract of
functional m-RNA Meloidegyne gene
In Nematode resistant plant formation, among
given combinations which are incorrect

• A. D & E
• B. D & F
• C. C & E
• D. A & F

Answer 1

Answer: (A)

D & E

• Transgenic plants are those plants whose genome is altered by the addition of one or more transgenes. Tobacco plant is the most common plant for expressing the transgenes. As the genome of tobacco plant is completely studied. The transgenic plants are transcribed in such a way that they develop tolerance against stress, salt, herbicide and also for vaccine productions. There are several transgenes which are inserted in tobacco plant like cry2Aa gene which gives resistance against any worms.
  
• The Meloidogyne does not perform the conversion of sites like pre-RISC to RISC. The Meloidogyne gene is obtained by the species Meloidegyne incognita which are mainly responsible for causing root knot in plants.
• Therefore the correct answer is option "A".