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- Question
Water content of active protoplasm is
Options- A. 10%
- B. 40%
- C. 70%
- D. 90%
- Correct Answer
- 90%
- 1. 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
- 2. 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
- 3. 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
- 4. 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
- 5. The recombinant hGH lacks
Options- A. terminal glutamine
- B. terminal lysine
- C. terminal methionine
- D. terminal arginine Discuss
- 6. "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
- 7. 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
- 8. 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
- 9. Which of the following statements about the outer mitochondrial membrane is not true?
Options- A. The outer membrane is impermeable to hydrogen ions
- B. The outer membrane is highly permeable to substances of small molecular weight
- C. The outer membrane is about 50% lipid and 50% protein by weight
- D. The outer membrane contains porins Discuss
- 10. The fluid matrix of a cell is called the
Options- A. nucleus
- B. cytosol
- C. cytoskeleton
- D. endoplasmic reticulum Discuss
More questions
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
Correct Answer: The outer membrane is impermeable to hydrogen ions
Correct Answer: cytosol
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