Transgenic Plant problems
- 1. Expression of antisense RNA in transgenic plants is a general method used to
Options- A. activate the expression of all genes in a biochemical pathway
- B. eliminate the expression of all genes in a biochemical pathway
- C. block the expression of virus coat protein genes
- D. reduce or eliminate the expression of individual genes Discuss
Correct Answer: reduce or eliminate the expression of individual genes
- 2. Plants containing genes encoding cytokines and blood clotting factors are used in
Options- A. nutrition improvement
- B. pharmaceutical production
- C. vaccine production
- D. textile production Discuss
Correct Answer: pharmaceutical production
- 3. Which of the following metabolites are implicated in stress tolerance?
Options- A. Proline
- B. Betaines
- C. Both (a) and (b)
- D. Citrate Discuss
Correct Answer: Both (a) and (b)
- 4. Given the DNA sequence ATTAAGGC, which sequence would be used by researchers as an antisense molecule?
Options- A. AUUAAGGC
- B. UAAUUCCG
- C. CGGAATTA
- D. TAATTCCG Discuss
Correct Answer: AUUAAGGC
- 5. Metabolic interference is a term used to describe a method to metabolize a compound and prevent the synthesis of something that is normally produced. What compound(s) have been targeted for metabolic interference in tomato?
Options- A. ACC (1-aminocyclopropane-1-carboxylic acid)
- B. SAM (S-adenosylmethionine)
- C. Both (a) and (b)
- D. AOA (aminooxyacetic acid) Discuss
Correct Answer: Both (a) and (b)
- 6. Antisense transgenic plants produced fruit that softened
Options- A. more slowly than the normal fruit
- B. more rapidly than the normal fruit
- C. as the normal fruits
- D. none of these Discuss
Correct Answer: more slowly than the normal fruit
- 7. The delayed ripening tomato was created by a biotechnologist who __________ a gene.
Options- A. altered
- B. silenced
- C. replaced
- D. relocated Discuss
Correct Answer: silenced
- 8. Transgenic plants
Options- A. contain foreign genes in their cells
- B. are used to produce human antibodies
- C. both (a) and (b)
- D. are plants that differ in geographical locations Discuss
Correct Answer: both (a) and (b)
- 9. Tomatoes exhibiting delayed ripening express antisense RNA against
Options- A. glycerol 1 phosphate acyl transferase
- B. polygalactouranase
- C. ACC deaminase
- D. sucrose phosphate synthase gene Discuss
Correct Answer: ACC deaminase
- 10. ACC demainase gene is responsible for
Options- A. synthesis for ethylene
- B. degradation of ACC an immediate precursor to ethylene
- C. both (a) and (b)
- D. synthesis of polygalactouranase Discuss
Correct Answer: degradation of ACC an immediate precursor to ethylene
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