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- Question
Sometimes cell lines can be cultured for such a long time that they apparently develop the potential to be subcultured indefinitely in vitro. Such cells lines are called
Options- A. established cell lines
- B. primary cell lines
- C. secondary cell lines
- D. propagated cell lines
- Correct Answer
- established cell lines
- 1. Chemical energy is supplied to eukaryotic cells by
Options- A. chloroplasts and golgi complexes
- B. mitochondria and ribosomes
- C. mitochondria only
- D. mitochondria and chloroplasts Discuss
- 2. Problems in obtaining large amounts of proteins encoded by recombinant genes can often be overcome by using
Options- A. BACS
- B. expression vectors
- C. YACS
- D. all of these Discuss
- 3. Phagemid consist of
Options- A. plasmid vector carrying ? phage's cos site
- B. plasmid vector carrying ? attachment (? att) site
- C. plasmid vector carrying origin of replication of ? phage only
- D. plasmid vector carrying origin of replication of plasmid only Discuss
- 4. DNA is microinfected into the fertilized egg
Options- A. after the fusion of male and female nuclei
- B. before the fusion of male and female nuclei
- C. at the time of fusion of male and female nuclei
- D. any time, it can be infected Discuss
- 5. Inundation involves use of a/an
Options- A. large number of organisms over a short time to suppress/destroy a population
- B. organism over a short time to suppress/destroy a population
- C. large number of organisms over a long time to suppress/destroy a population
- D. organism over a long time to suppress/destroy a population Discuss
- 6. Which of the following growth regulator is used to stimulate embryo or shoot development?
Options- A. Auxins
- B. Cytokinins
- C. Gibberellins
- D. Brassinosteroids Discuss
- 7. Which of the following statements about mitosis is incorrect?
Options- A. The daughter nuclei are genetically identical to the parent nucleus
- B. Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
- C. Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize
- D. Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers Discuss
- 8. The approach (s), which is/are currently followed to produce human monoclonal antibodies, is/are known as
Options- A. transformation of antigen specific B lymphocytes (EBV)
- B. hybridization of 6-thioguanine-resistant human plasmacytoma with immune human lymphocytes
- C. combination of EB Vand hybridoma techniques
- D. all of these Discuss
- 9. Klinefelter syndrome is a manifestation of which chromosome aneuploidy?
Options- A. XXX
- B. XYY
- C. XXY
- D. None of these Discuss
- 10. The term homologous chromosomes
Options- A. refers to replications of the same chromosome
- B. is another name for sister chromatids
- C. must be haploid
- D. means a pair of chromosomes of the same kind, such as sex chromosomes Discuss
More questions
Correct Answer: mitochondria and chloroplasts
Correct Answer: expression vectors
Correct Answer: plasmid vector carrying ? attachment (? att) site
Correct Answer: before the fusion of male and female nuclei
Correct Answer: large number of organisms over a short time to suppress/destroy a population
Correct Answer: Gibberellins
Correct Answer: Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other
Correct Answer: all of these
Correct Answer: XXY
Correct Answer: means a pair of chromosomes of the same kind, such as sex chromosomes
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