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Question #45890
The Question
In the development of the transgenic Flavr Savr tomato, the utility of the non-coding strand is exploited to delay fruit softening. Which of the following statements regarding this mechanism is INCORRECT?
Options
- A.
A transgene is introduced that transcribes an antisense RNA complementary to the endogenous polygalacturonase mRNA.
- B.
The hybridization of the sense and antisense RNA molecules directly inhibits the transcription of the endogenous polygalacturonase gene.
- C.
The formation of double-stranded RNA (dsRNA) prevents the translation of the mRNA into the cell wall-degrading enzyme.
- D.
The systemic fallout of this genetic modification is the inhibition of pectin degradation, thereby extending the shelf life.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Comparative_Analysis
Sharpen your ability to evaluate multiple scenarios and distinguish between competing potential answers.
Concepts Behind This Question
Flavr Savr Tomato Logic|Antisense Strand|Polygalacturonase
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Distinguishing between transcriptional and post-transcriptional silencing.
A common misconception is that 'gene silencing' stops the gene from producing mRNA (transcription).
In antisense technology and RNA interference (RNAi), the silencing occurs post-transcriptionally; the mRNA is transcribed but its translation into protein is blocked by the formation of dsRNA.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Molecular Basis of Inheritance - Class 12 |
| Concept | Non-Coding Strand Utility |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |