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- Question
Involvement of sugarcane phytoalexins in red-hot resistance has been observed. The phytoalexin compound is reported to be
Options- A. 3-deoxyanthocyanidin
- B. luteolinidin
- C. apigeninidin
- D. 5-0 apigeninidin
- Correct Answer
- 3-deoxyanthocyanidin
- 1. M 13 is an example of
Options- A. filamentous phage
- B. single stranded DNA vector
- C. both (a) and (b)
- D. plasmid Discuss
- 2. Which of the following is true about T DNA?
Options- A. Integration of T DNA can occur at many different, apparently random, sites in the plant nuclear DNA
- B. Integration of T DNA occurs only at one specific sites in the plant nuclear DNA
- C. Integration of T DNA occurs at two specific sites in the plant nuclear DNA
- D. Integration of T DNA occurs at one site that may be random in the plant nuclear DNA Discuss
- 3. Which of the following enzyme is used to covalently bond foreign DNA to a vector plasmid?
Options- A. DNA polymerase
- B. Restriction endonuclease
- C. DNA ligase
- D. DNA helicase Discuss
- 4. Agrobacterium tumefaciens is
Options- A. a disease in humans that causes loss of sight
- B. a bacterium that can be used to introduce DNA into plants
- C. a fungi that is used to produce antibiotics in large amounts
- D. a disease in humans that causes loss of weight Discuss
- 5. How is human insulin synthesized using recombinant DNA technology?
Options- A. By using chemically synthesized DNA sequences for the two chains separately
- B. By isolating DNA from the islets of Langerhans of pancreas
- C. By using cDNA for insulin
- D. By using chemically synthesized DNA sequences for the complete insulin protein Discuss
- 6. The two chains are joined together to constitute native insulin using
Options- A. sodium dissulphonate and sodium sulphite
- B. sodium dissulphonate and sodium sulphate
- C. sodium sulphate and sodium sulphite
- D. sodium sulphate only Discuss
- 7. The recombinant hGH lacks
Options- A. terminal glutamine
- B. terminal lysine
- C. terminal methionine
- D. terminal arginine Discuss
- 8. "The universe tends towards maximum disorder" is stated by
Options- A. first law of thermodynamics
- B. second law of thermodynamics
- C. third law of thermodynamics
- D. none of the above Discuss
- 9. Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?
Options- A. Both have their own DNA
- B. Both have their own ribosomes
- C. Both strongly resemble prokaryotes, especially in size
- D. Both can live and function independently of the cell Discuss
- 10. Which of the following statements about mitochondrial proteins is true?
Options- A. All mitochondrial proteins are coded for and synthesized in the mitochondria
- B. Some mitochondrial proteins are coded for and synthesized in the mitochondria and others
- C. All mitochondrial proteins are imported from the cytoplasm
- D. Mitochondrial proteins arise from other mitochondrial proteins Discuss
More questions
Correct Answer: both (a) and (b)
Correct Answer: Integration of T DNA can occur at many different, apparently random, sites in the plant nuclear DNA
Correct Answer: DNA ligase
Correct Answer: a bacterium that can be used to introduce DNA into plants
Correct Answer: By using chemically synthesized DNA sequences for the two chains separately
Correct Answer: sodium dissulphonate and sodium sulphite
Correct Answer: terminal methionine
Correct Answer: second law of thermodynamics
Correct Answer: Both can live and function independently of the cell
Correct Answer: Some mitochondrial proteins are coded for and synthesized in the mitochondria and others
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