Discussion
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- Question
Single stranded circular RNA encapsidated with a larger RNA in a plant virus is
Options- A. a virion
- B. a viroid
- C. a virusoid
- D. none of these
- Correct Answer
- a virusoid
- 1. pH of culture medium is initially controlled by
Options- A. presence of CO2
- B. presence of bicarbonate buffer
- C. addition of bases
- D. none of these Discuss
- 2. Some types of variation are due to changes in the genetic material. What is this type of change called?
Options- A. Fertilisation
- B. Mutation
- C. Radiation
- D. Sterilisation Discuss
- 3. Which of the following is the word used to describe what happens when the nucleus of a sperm joins with the nucleus of an egg cell?
Options- A. Sex
- B. Fertilisation
- C. Intercourse
- D. Reproduction Discuss
- 4. For culturing, plasma from the adult chicken is preferred to mammalian plasma because
Options- A. it forms a clear and solid coagulum even after dilution
- B. it is too opaque
- C. it doesn't produce solid clots
- D. it forms a semi solid coagulum Discuss
- 5. In animal cell culture, particularly mammalian cell culture, transformation means
Options- A. uptake of new genetic material
- B. phenotypic modifications of cells in culture
- C. both (a) and (b)
- D. release of genetic information Discuss
- 6. Multiple ovulation and embryo transfer (MOET)
Options- A. can increase the rate of progress in dairy cattle
- B. allows progeny testing of males
- C. allows progeny testing of females
- D. all of the above Discuss
- 7. 5-fluoro orotic acid inhibits the growth if one of the following marker is present in the yeast. That is
Options- A. His 3
- B. Lys 2
- C. Ura 3
- D. Trp 1 Discuss
- 8. Which of the following statement is correct?
Options- A. Variation is caused by genes
- B. Variation is caused by the environment
- C. Variation can be caused by both genes and the environment
- D. None of the above Discuss
- 9. How is air supply to the fermentor sterilized?
Options- A. By heat filtration
- B. Filtration through fibrous material
- C. Filtration through granular material
- D. All of the above Discuss
- 10. A nuclear envelope forms around each set of sister chromatids in
Options- A. anaphase
- B. metaphase
- C. prophase
- D. telophase Discuss
More questions
Correct Answer: presence of bicarbonate buffer
Correct Answer: Mutation
Correct Answer: Fertilisation
Correct Answer: it forms a clear and solid coagulum even after dilution
Correct Answer: phenotypic modifications of cells in culture
Correct Answer: all of the above
Correct Answer: Ura 3
Correct Answer: Variation is caused by genes
Correct Answer: All of the above
Correct Answer: telophase
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