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- Question
The word, used for the small solid supports onto which are spotted hundreds of thousands of tiny drops of DNA that can be used to screen gene expression, is
Options- A. southern blot
- B. cloning library
- C. DNA microarrays
- D. northern blot
- Correct Answer
- DNA microarrays
- 1. The organisum used for production of streptomycin is
Options- A. Streptomyces rimosus
- B. Streptomyces griseus
- C. Streptomyces aureofaciens
- D. Streptomyces erythreus Discuss
- 2. The Archaea include all of the following except
Options- A. methanogens
- B. halophiles
- C. thermoacidophiles
- D. cyanobacteria Discuss
- 3. The application of Gamma rays destroys botulism toxin. The dose of gamma rays required for this purpose is
Options- A. 73 Gy
- B. 73 Rad
- C. 7.3 Mrad
- D. 173 Rad Discuss
- 4. Milk is pasteurized in batch method by keeping it at
Options- A. 63°C for 30 minutes
- B. 72°C for 60 seconds
- C. 73°C for 30 minutes
- D. 72°C for 6 minutes Discuss
- 5. Who was the inventor of the Petri dish?
Options- A. R.J. Petri, an assistant of R. Koch
- B. A famous French cook
- C. Italian glass blower from Petri, Italy
- D. None of the above Discuss
- 6. The cooci which mostly occur in single or pairs are
Options- A. Streptococci
- B. Diplococci
- C. Tetracocci
- D. None of these Discuss
- 7. The larger the __________ , the better the chemotherapeutic agent.
Options- A. therapeutic index
- B. therapeutic dose
- C. selective toxicity
- D. spectrum Discuss
- 8. During which of the following process a new copy of a DNA molecule is precisely synthesized?
Options- A. Trasformation
- B. Transcription
- C. Translation
- D. Replication Discuss
- 9. Which of the following gram-negative bacteria is/are not aerobic?
Options- A. Pseudomonas
- B. Neisseria
- C. Escherichia
- D. None of these Discuss
- 10. Protein portion of an enzyme when it is combined with organic molecule is termed as
Options- A. apoenzyme
- B. co-enzyme
- C. holoenzyme
- D. co-factors Discuss
More questions
Correct Answer: Streptomyces griseus
Correct Answer: cyanobacteria
Correct Answer: 7.3 Mrad
Correct Answer: 63°C for 30 minutes
Correct Answer: R.J. Petri, an assistant of R. Koch
Correct Answer: Diplococci
Correct Answer: therapeutic index
Correct Answer: Replication
Correct Answer: Escherichia
Correct Answer: apoenzyme
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