-
Which of the following statements are true about glyphosate tolerant transgenic plants?
P. Transgenic plants detoxify glyphosate.
Q. Transgenic plants produce an altered enzyme that is not affected by glyphosate.
R. Transgenic plants sequester glyphosate in vacuoles.
S. Transgenic plants overcome the inhibition of aromatic amino acid biosynthesis.
-
- P, Q
- R,S
- Q,S
- P, R
Correct Option: C
Statement Q :When glyphosphate expressed in chloroplasts of transgenic plants, the insensitive enzymes produced by confer tolerance to the herbicide glyphosphate.
Statement S : Glyphosphate acts by inhibiting enolpyruvyl-shikimate-3-phosphate synthase (EPSPS), an enzyme in the pathway leading to biosynthesis of aromatic amino acids. Since transgenic plants exhibit resistance to glyphosphate, there is no inhibition of the synthesis of aromatic amino acids.
